Indian harmonium

Last updated
A Delhi style Bina brand Indian Harmonium with a built in suitcase for easy transport and with 9 air stop knobs (stops 2, 4, 6, 8 are drones). Harmonium 20151009 (23914086965).jpg
A Delhi style Bina brand Indian Harmonium with a built in suitcase for easy transport and with 9 air stop knobs (stops 2, 4, 6, 8 are drones).
Musicians in Kathmandu, Nepal, playing the tabla and harmonium. Kathmandu-21.JPG
Musicians in Kathmandu, Nepal, playing the tabla and harmonium.

The Indian harmonium,hand harmonium,samvadini, peti ("box"), or vaja, often just called a harmonium, is a small and portable hand-pumped reed organ which is very popular in the Indian subcontinent. [1] The sound resembles an accordion or other bellows driven free-reed aerophones. [1]

Contents

Reed-organs arrived in India during the mid-19th century, possibly with missionaries or traders. [2] Over time they were modified by Indian craftsmen to be played on the floor (since most traditional Indian music is done in this fashion), and to be smaller and more portable. [1]

This smaller Indian harmonium quickly became very popular in the Indian music of the 19th and 20th century. It also became widely used for Indian devotional music played in temples and in public. The Indian harmonium is still widely used today by Sikhs, Hindus, Muslims and Buddhists for devotional genres like qawwali, ghazal, kirtan and bhajan. In South Asia, the harmonium is most widely used to accompany vocalists. [1]

The Indian harmonium has also recently become popular in the Western yoga subculture. It was popularized by American kirtan singers like Krishna Das and Jai Uttal.

A related instrument is the Shruti box, a keyless harmonium, used only to produce drones to support other soloists.

History

A French Guide-chant which was played resting on table with the right hand, the left hand pumps with a handle. Lyon 8e - Rue du General Andre - Classe-musee de la Plaine - Guide-chant.jpeg
A French Guide-chant which was played resting on table with the right hand, the left hand pumps with a handle.
A craftsman repairs a harmonium in his shop in Amritsar, India. Harmonium repair.jpg
A craftsman repairs a harmonium in his shop in Amritsar, India.

Development during the 19th century

The European harmonium developed in the 18th century, inspired by the Chinese Sheng, a gourd mouth organ. [3] Various types of European harmoniums and reed-organs arrived in India in the 19th century, some were brought by missionaries. [2] [1]

The Indian harmonium is derived from reed organ (pump organ) designs developed in France. Originally, these were large instruments, designed to be played sitting on a chair, which allowed one to pump the instrument using foot pedals. [4] Over time, Europeans designed smaller harmoniums, like the Guide-chant, which included manually pumped bellows. [5]

Indian craftsmen soon created a much smaller instrument based on the European designs, which was made to rest on the floor with bellows that were pumped with the left hand. Other elements were added, like the addition of drone stops (the use of drones is important in Indian music). This instrument quickly became popular: it was lightweight and thus portable, reliable, easy to learn and produced a rich sound. [6] Dwarkanath Ghose of the Dwarkin company is often considered to be one of the first inventors of the Indian style harmonium. [4]

Dwijendranath Tagore is credited with having used the imported instrument in 1860 in his private theatre, but it was probably a pedal-pumped instrument that was cumbersome or possibly some variation of the reed organ. Initially, it aroused curiosity, but gradually people started playing it, [7] and Ghose took the initiative to modify it. [4] It was in response to Indian needs that the new harmonium was introduced. All Indian musical instruments are played with the musician sitting on the floor or a stage, behind the instrument or holding it in his hands. In that era, Indian homes did not use tables and chairs. [4]

Furthermore, in Western music, which is harmonically based, both a player's hands were needed to play the chords, thus assigning the bellows to the feet was the best solution; in Indian music, which is melodically based, only one hand was necessary to play the melody, and the other hand was free for the bellows.

Controversy in the 20th century

Farrukh Fateh Ali Khan the "King of the Harmonium", one of the greatest harmonium players of the 20th century Ustad Farrukh Fateh Ali Khan Saheb.jpg
Farrukh Fateh Ali Khan the "King of the Harmonium", one of the greatest harmonium players of the 20th century
Indian classical music performance with a harmonium Koushik Bhattacharjee in ITC SRA Sangeet Sammelan 2014.JPG
Indian classical music performance with a harmonium

The harmonium was widely accepted throughout Indian music in the late 19th century. By the early 20th century, however, in the context of Indian nationalist movements that sought to depict India as separate from the West, the harmonium was portrayed as an unwanted foreign interloper.

From the point of view of Indian classical music, there were also technical concerns with the harmonium, including its inability to produce slurs, gamaka (playing semi-tone between notes) and meend (slides between notes) which can be done in instruments like Sitar and Sarod, [2] and the fact that, as a keyboard instrument, it is set to specific pitches. [2] [6] Unlike a stringed instrument, its pitches cannot be adjusted in the course of performance.

The inability to slide between notes prevents it from articulating the subtle inflections (such as andolan, gentle oscillation) so crucial to many of the ragas of Indian classical music. The fact that the instrument is set to specific pitches also makes it less compatible to the classical Indian concept of svara, which doesn't focus on specific pitches, but a range of pitches. [2] The fixed pitches prevent it from articulating the subtle differences in intonational color between a given svara in two different ragas. [2] For these reasons, it was banned from All India Radio from 1940 to 1971. [2]

On the other hand, many of the harmonium's qualities suited it very well for the newly reformed classical music of the early 20th century: it is easy for amateurs to learn; it supports group singing and large voice classes; it provides a template for standardized raga grammar; it is loud enough to provide a drone in a concert hall. For these reasons, it has become the instrument of choice for accompanying most North Indian classical vocal genres, with top vocalists (e.g., Bhimsen Joshi) routinely using harmonium accompaniment in their concerts. Furthermore, some Indian musicians also made use of the harmonium as a solo instrument, including Pandit Bhishmadev Vedi, Pandit Muneshwar Dayal, Pandit Montu Banerjee, and Pamabhusan JnanPrakash Ghosh. [6]

The harmonium is still disliked by some connoisseurs of Indian music, who prefer the sarangi as an accompanying instrument for khyal singing. [6]

The musical concerns regarding the limitations of the harmonium also led to new technical innovations which attempted to craft a harmonium that was more suited to classical Indian music. One of these attempts is the work of Bhishmadev Vedi who is said to have been the first to contemplate improving the harmonium by augmenting it with a swarmandal (harp-like string box) attached to the top of the instrument. His disciple, Manohar Chimote, later implemented this concept, also making the instrument more responsive to key pressure, and called the instrument a samvadini—a name now widely accepted. [8] [6] Bhishmadev Vedi is also said to have been among the first to contemplate and design compositions specifically for the harmonium, styled along the lines of "tantakari"—performance of music on stringed instruments. These compositions tend to have a lot of cut notes and high-speed passages, creating an effect similar to that of a string being plucked.

Dr. Vidyadhar Oke with his 22-microtone harmonium Dr Vidyadhar Oke.jpg
Dr. Vidyadhar Oke with his 22-microtone harmonium

In 1954, Late Jogesh Chandra Biswas first modified the then-existing harmoniums, so it folds down into a much thinner space for easier maneuverability. Before that, if the instrument was boxed, it used to need two people to carry it, holding it from either side. This improvisation became a generic design in most harmoniums since then and was coined with the term "Folding Harmoniums".

Another modification of the instrument is that by musicologist Vidyadhar Oke, who developed a 22-microtone harmonium, which can play 22 microtones as required in Indian classical music. The fundamental tone (Shadja) and the fifth (Pancham) are fixed, but the other ten notes have two microtones each, one higher and one lower. The higher microtone is selected by pulling out a knob below the key. In this way, the 22-shruti harmonium can be tuned for any particular raga by simply pulling out knobs wherever a higher shruti is required.

Construction and components

Tahir Hussain with a scale-changer harmonium Tahir Hussain Harmonioum.JPG
Tahir Hussain with a scale-changer harmonium
A 22 Shruti harmonium with numerous small stops 22 shruti harmonium.jpg
A 22 Shruti harmonium with numerous small stops

The basic components of an Indian harmonium include: a wooden body with two metal handles for carrying, banks of brass reeds (often 1, 2, or 3) set on a wooden reed board, a pumping apparatus (bellows), air stops (including stops for drones), and a keyboard (which is similar to a piano keyboard but with a smaller number of keys). [9] Some models include an octave coupler, a mechanism which links one reed valve with another note (usually the same note an octave above or below). [9]

The sound is produced by the air, which is pumped by the bellows into an internal reservoir bellows inside the harmonium. Air from this inner reservoir escapes to vibrate the reeds. This allows for a continuously sustained sound. [9]

Types

Pakistani Lahore style harmonium, this is the most common harmonium used in Qawwali music Pakistani Qawwali Harmonium.jpg
Pakistani Lahore style harmonium, this is the most common harmonium used in Qawwali music
Two banks of German Jubilate Harmonium Reeds German Jubilate Harmonium Reeds.jpg
Two banks of German Jubilate Harmonium Reeds

There are two main styles of standard Indian Harmoniums (i.e. equi-tempered harmoniums) built in India: Delhi style and Kolkata style. Each style traditionally uses different types of wood, construction methods and designs, resulting in a different sound and feel.

Delhi style harmoniums are typically less expensive than Kolkata style harmoniums, which tend to be more high end. Kolkata style harmoniums often have three or four banks of reeds (while Delhi style usually comes with just two banks). They also are commonly made of hardwood, like teak (Delhi style is more often made of softwoods). These differences makes Kolkata style harmoniums more expensive, but their sound is significantly fuller and their range is larger. Kolkata style harmoniums are also commonly designed with scale changers which allows one to slide the keyboard to change scale without changing chord positions. This further adds to the cost.

Regarding Harmoniums made in Pakistan, Lahore style (sometimes called Qawwali style or Pakistani) harmoniums are also unique in their construction. Lahore style harmoniums typically lack the numerous stop and drone knobs found in harmoniums built in India. Higher end models also commonly feature the rare German Jubilate Harmonium reeds. They may also come with a right upper action octave coupler that is permanently engaged.

Some harmoniums (sometimes named "portable" or "travel" models) also come with a built in wooden suitcase. The top of the suitcase is detachable, and the keyboard is then raised for playing. [10]

Aside from the main construction styles, harmoniums also come in several different sizes, and as such, their sound varies depending on its construction. Smaller builds may also have a smaller number of keys. The standard number is a 42 key keyboard, but smaller versions may have 39 or 32 keys. Smaller models may be built in slightly different designs as well, or they may be simple smaller versions of the classic design. Small models generally have less sustain and a sound which is less full, since the sound box is significantly smaller.

Another rarer and more expensive type of harmonium is the 22 shruti (22 microtone) harmonium. These are used specifically for Indian classical music since they can replicate the 22 microtones used in Indian classical music, a feat that other models cannot accomplish.

Usage

Qawwali singers at Fatehpur Sikri Qawwali singers at Fatehpur Sikri.jpg
Qawwali singers at Fatehpur Sikri
Sikh Ragis Kirtan Jatha. Nairobi, 1942. Sikh Ragis Kirtan Jatha. Nairobi. 1942.jpg
Sikh Rāgis Kirtan Jatha. Nairobi, 1942.
Krishna Das at Bhakti Fest West in 2014 KDBhaktifestWest 20140906 (15217667881).jpg
Krishna Das at Bhakti Fest West in 2014

The harmonium is an important instrument in many genres of Indian, Pakistani, and Bangladeshi music. It is used in many South Asian musical genres including North Indian classical music forms like Dhrupad and Kheyal, Sufi Muslim Qawwali music, Hindu and Sikh devotional (bhakti) music (Bhajan and Kirtan), as well as Folk music, Filmi Sangeet (Indian Film Music), Ghazal, Geet, Dhamar, Thumri, and Shabad. [11] [12]

In most genres, the Indian harmonium is commonly accompanied by some percussion instrument which provides the tala to the music, such as the tabla, dholak, taal, or mridangam.

Almost all Qawwals use the harmonium as musical accompaniment. [13] It has received international exposure as the genre of Qawwali music has been popularized by renowned Pakistani musicians, including Nusrat Fateh Ali Khan (1948–1997) and Aziz Mian (1942–2000). [13]

Harmoniums are commonly found in gurdwaras (Sikh temples) around the world, where is it commonly used for Shabad kirtan devotional chanting. To Sikhs, the harmonium is known as the vaja or baja (ਵਾਜਾ; Vājā). It was widely adopted by Sikhs during the 19th and 20th century, often replacing native instruments. [14] It is also referred to as a peti (literally, box) in some parts of North India and Maharashtra (where it is widely used in Marathi kirtan).

The Indian harmonium came to the western world during the spread of Indian religions to the west in the 20th century. Indian religious movements like the International Society for Krishna Consciousness's (ISKCON) and Yogi Bhajan's 3HO brought Indian devotional kirtan to the West, which included the use of the harmonium. [15] Western kirtan singers like Krishna Das, Jai Uttal, and Snatam Kaur have become well known harmonium players, especially in the new age and yoga subcultures. [16] [17]

Related Research Articles

<span class="mw-page-title-main">Religious music</span> Music intended for religious purpose

Religious music is a type of music that is performed or composed for religious use or through religious influence. It may overlap with ritual music, which is music, sacred or not, performed or composed for or as ritual. Religious songs have been described as a source of strength, as well as a means of easing pain, improving one's mood, and assisting in the discovery of meaning in one's suffering. While style and genre vary broadly across traditions, religious groups still share a variety of musical practices and techniques.

<span class="mw-page-title-main">Organ (music)</span> Keyboard instrument

In music, the organ is a keyboard instrument of one or more pipe divisions or other means for producing tones. The organs have usually two or three, up to five manuals, for playing with the hands, and pedalboard, with the feet. With the use of registers, several groups of pipes can be connected to one manual.

<span class="mw-page-title-main">Bhajan</span> Singing of poems or hymns in Indian traditions

Bhajan refers to any devotional song with a religious theme or spiritual ideas, specifically among Indian religions, in any language. The term bhajanam means reverence and originates from the root word bhaj, which means to revere, as in 'Bhaja Govindam' . The term bhajana also means sharing.

<span class="mw-page-title-main">Dholak</span> South Asian folk percussion instrument

The dholak is a two-headed hand drum, a folk percussion instrument. The dholak is most commonly recognised in countries such as India, Pakistan, Bangladesh, Nepal and Sri Lanka, but can also be found amongst the Indo-Diaspora in countries such as Guyana, Suriname, Fiji, Trinidad and Tobago, South Africa and Mauritius. The dholak can be anywhere about 16" to 24" in length. It is widely used in qawwali, kirtan, bhajan, bhangra, chutney, baithak gana, Bollywood film songs, lokgeet and various classical styles such as Hindustani, Carnatic and Trinidadian local classical / Guyanese taan. The drum has two different sized drumheads. There is a smaller drumhead that can be from 5.5 to 8 inches in diameter and is made for sharp notes while the bigger drumhead, which can be from 7.5 to 10 inches in diametre, is made for low pitch. The two drumheads allow a combination of bass and treble with rhythmic high and low pitches. The body or shell of the Dholak can made of sheesham or mango wood. The larger drum head has a compound of tar, clay and sand, called "masala" which is applied to lower the pitch and produce the sound. The smaller drumhead is played with the person's dominant hand, while the larger is played by the person's weaker hand. A dholak can either be fitted with a nuts and bolts or a rope and steel rings for tuning. Commonly in the Indian subcontinent, there are only one set of rings for tuning the treble side of the dholak, while in the Caribbean, hook screws are placed into the sides of the dholak to allow tuning of both the treble and the bass. Dholak can be played in three ways — on the player’s lap, while standing, or pressed down with one knee while sitting on the floor.

<span class="mw-page-title-main">Qawwali</span> Sufi devotional music from South Asia

Qawwali is a form of Sufi Islamic devotional singing originating in South Asia. Originally performed at Sufi shrines or dargahs throughout South Asia, it is famous throughout Pakistan, India, Bangladesh and Afghanistan and has also gained mainstream popularity and an international audience as of the late 20th century.

<span class="mw-page-title-main">Kirtan</span> Musically recited story in Indian traditions

Kirtana, also rendered as Kirtan or Keertan, is a Sanskrit word that means "narrating, reciting, telling, describing" of an idea or story, specifically in Indian religions. It also refers to a genre of religious performance arts, connoting a musical form of narration or shared recitation, particularly of spiritual or religious ideas, native to the Indian subcontinent. A person performing kirtan is known as a kirtankara.

<span class="mw-page-title-main">Shruti box</span> Indian musical instrument

A shruti box is an instrument, originating from the Indian subcontinent, that traditionally works on a system of bellows. It is similar to a harmonium and is used to provide a drone in a practice session or concert of Indian classical music. It is used as an accompaniment to other instruments and notably the flute. The shruti box is also used in classical singing. In classical singing, the shruti box is used to help tune the voice. The use of the shruti box has widened with the cross-cultural influences of world music and new-age music to provide a drone for many other instruments as well as vocalists and mantra singing.

<span class="mw-page-title-main">Khol</span>

The khol is a terracotta two-sided drum used in northern and eastern India for accompaniment with devotional music (bhakti). It is also known as a mridanga, not to be confused with mridangam. It originates from the Indian states of West Bengal, Assam and Manipur. The drum is played with palms and fingers of both hands.

Esraj Indian string instrument

The esraj or esraaj is an Indian stringed instrument found in two forms throughout the Indian subcontinent. It is a relatively recent instrument, being only about 300 years old. It is found in North India and Pakistan, primarily Punjab, where it is used in Sikh music and Hindustani classical compositions and in West Bengal. The esraj is a modern variant of the dilruba, differing slightly in structure.

<span class="mw-page-title-main">Pump organ</span> Free-reed organ musical instrument

The pump organ or reed organ is a type of free-reed organ that generates sound as air flows past a vibrating piece of thin metal in a frame. The piece of metal is called a reed. Specific types of pump organ include the American reed organ, the Indian harmonium, the physharmonica, and the seraphine. The idea for the free reed was derived from the Chinese sheng through Russia after 1750, and the first Western free-reed instrument was made in 1780 in Denmark.

<span class="mw-page-title-main">Expression pedal</span>

An expression pedal is an important control found on many musical instruments including organs, electronic keyboards, and pedal steel guitar. The musician uses the pedal to control different aspects of the sound, commonly volume. Separate expression pedals can often be added to a guitar amplifier or effects unit and used to control many different aspects of the tone.

<span class="mw-page-title-main">Seni rebab</span>

The Seni rebab, also known as the Seniya rabab is a plucked string instrument used in northern India that is said to have been developed by, and to have taken its name from, the notable musician Tansen in the time of the emperor Akbar the Great. It has "a large hook at the back of its head, making it easier for a musician to sling it over the shoulder and play it even while walking." It has been used in Hindustani classical music and religiously, in Sikh music. The rebab influenced the development of the sarod, another Indian musical instrument.

<span class="mw-page-title-main">Kafi</span>

Kafi is a classical form of Sufi music mostly in the Siraiki, Punjabi and Sindhi languages and originating from the Punjab, and Sindh regions in the Indian subcontinent. Some well-known Kafi poets are Baba Farid, Bulleh Shah, Shah Hussain, Shah Abdul Latif Bhittai, Sachal Sarmast and Khwaja Ghulam Farid. This poetry style has also lent itself to the Kafi genre of singing, popular throughout South Asia, especially Pakistan, Bangladesh and India. Over the years, both Kafi poetry and its rendition have experienced rapid growth phases as various poets and vocalists added their own influences to the form, creating a rich and varied poetic form, yet through it all it remained centered on the dialogue between the Soul and the Creator, symbolized by the murid (disciple) and his Murshid (Master), and often by lover and his Beloved.

<span class="mw-page-title-main">Rudra veena</span> Plucked string instrument

The Rudra veena —also called Bīn in North India—is a large plucked string instrument used in Hindustani Music, especially dhrupad. It is one of the major types of veena played in Indian classical music, notable for its deep bass resonance.

<span class="mw-page-title-main">Sikh music</span>

Sikh music, also known as Gurbani Sangeet , and as Gurmat Sangeet, or even as Shabad Kirtan, is the classical music style that is practised within Sikhism. It exists in institutional, popular, and folk traditions, forms, and varieties. Three types of Sikh musicians are rababis, ragis, and dhadhis. Sikh music exists in various melodic modes, musical forms, styles, musicians, and performance contexts.

<span class="mw-page-title-main">Taus (instrument)</span>

The taus, originally known as the mayuri veena, is a bowed string instrument from North India. It is a form of veena used in North India with a peacock-shaped resonator called a mayuri, and is played with the neck of the instrument on bow.

<span class="mw-page-title-main">German Jubilate Harmonium Reeds</span>

German Jubilate Harmonium Reeds are brass reeds used in Indian harmoniums that were manufactured in Germany between 1911 and the early 1960s. The reeds were originally manufactured for American style suction reed organs being manufactured in Germany on machinery that was bought second hand in Chicago in the United States and imported to Germany by Karl Mannborg son of Theodor Mannborg. Mannborg owned the factory in Pegau, Germany supplying organ parts for American style suction reed organs. Germany was the only country in Europe that was manufacturing American style suction reed organs while the rest of the reed organ industry in Europe was making pressure reed Harmoniums.

<span class="mw-page-title-main">Rababi</span> Musician who plays the rabab

Rababi is a term used to refer to a player of the rabab instrument.

<span class="mw-page-title-main">Jori (instrument)</span> Indian & Punjabi/Sikh musical instrument (twin hand drums)

Jori, Jodi, Dhamma, or Jorhi is a South Asian percussion instrument made up of two individual drums. The Jori originates from the Punjab region of South Asia. Historically, the Jori has accompanied Gurbani Kirtan. Prominent exponents of the Jori include Ustad Sukhvinder Singh 'Pinky", ,Bhai Baldeep Singh, Bhai Jasdeep Singh, Bhai Surdarshan Singh and Bhai Gian Singh Naamdhari.

<span class="mw-page-title-main">Music of South Asia</span>

South Asian music comprises a range of prominent musical genres and styles that are unique to the countries in and around the Indian subcontinent. This subregion of Asia includes countries such as Afghanistan, Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan, and Sri Lanka, with each region one possessing its own distinct musical traditions. South Asian styles of music reflect a diverse range of local customs, regional languages and historical traditions, that have shaped the musical practices which are still seen today. Throughout history, South Asian musicians have emulated religious and spiritual beliefs into their compositions, resulting in the creation of musical styles such as Qawwali, Ghazal and Hindustani classical music. The development of forms of mass media in the 1980s and 1990s contributed to a new type of South Asian musical culture, as the rise of cinema and television resulted in the popularity of genres such as Bollywood and Lollywood. As a result of social media and modern streaming networks, folk and ritual music styles are still widely appreciated today, with many modern artists taking inspiration from the classical traditions that defined the history of South Asian music.

References

  1. 1 2 3 4 5 Brahaspati, S.V. (2023). How to Play Harmonium, p. 3. Abhishek Publications.
  2. 1 2 3 4 5 6 7 "Small encyclopedia with Indian instruments". india-instruments.com. excerpt of Suneera Kasliwal, Classical Musical Instruments, Delhi 2001
  3. Brahaspati, S.V. (2023). How to Play Harmonium, p. 5. Abhishek Publications.
  4. 1 2 3 4 "The Invention of Hand Harmonium". Dwarkin & Sons (P) Ltd. Archived from the original on 2007-04-09. Retrieved 2007-04-24.
  5. "guide-chant". Dictionnaires et Encyclopédies sur 'Academic' (in French). Retrieved 2022-11-06.
  6. 1 2 3 4 5 Brahaspati, S.V. (2023). How to Play Harmonium, p. 7. Abhishek Publications.
  7. Khan, Mobarak Hossain (2012). "Harmonium". In Islam, Sirajul; Jamal, Ahmed A. (eds.). Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh.
  8. "About Samvadini". Sydney: Samvad (music centre). Archived from the original on August 12, 2014. Retrieved August 11, 2014.
  9. 1 2 3 Brahaspati, S.V. (2023). How to Play Harmonium, p. 6. Abhishek Publications.
  10. Brahaspati, S.V. (2023). How to Play Harmonium, p. 9. Abhishek Publications.
  11. Jones, L. JaFran (1990). "Review of Sufi Music of India and Pakistan.: Sound, Context and Meaning in Qawwali". Asian Music. 21 (2): 151–155. doi:10.2307/834116. ISSN   0044-9202. JSTOR   834116.
  12. Brahaspati, S.V. (2023). How to Play Harmonium, p. 7-26. Abhishek Publications.
  13. 1 2 Brahaspati, S.V. (2023). How to Play Harmonium, p. 8. Abhishek Publications.
  14. "Sikh Saaj | Other | Tabla – Discover Sikhism". www.discoversikhism.com. Retrieved 2022-08-31.
  15. Jackson, Carl T. (1994). Vedanta for the West. Indiana University Press. p. 134. ISBN   0-253-33098-X.
  16. Goodman, Frank (January 2006). "Interview with Krishna Das" (PDF). Puremusic (61). Retrieved 2014-01-15.
  17. Eckel, Sara (2009-03-05). "Chanting Is an Exercise in Body and Spirit". The New York Times. Retrieved 2009-04-21.