A power trio is a rock and roll band format having a lineup of electric guitar, bass guitar and drum kit, leaving out a dedicated vocalist or an additional rhythm guitar or keyboard instrument that are often used in other rock music bands that are quartets and quintets. Larger rock bands often use one or more additional rhythm sections to fill out the sound with chords and harmony parts.
Most power trios in hard rock and heavy metal music use the electric guitar player in two roles; during much of the song, they play rhythm guitar, playing the chord progression for the song and performing the song's important riffs, and then switching to a lead guitar role during the guitar solo. While one or more band members typically sing while playing their instruments, power trios in hard rock and heavy metal music generally emphasize instrumental performance and overall sonic impact over vocals and lyrics. [1]
The rise of the power trio in the 1960s was made possible in part by developments in amplifier technology that greatly enhanced the volume of the electric guitar and bass. Particularly, the popularization of the electric bass guitar defined the bottom end and filled in the gaps. Since the amplified bass could also now be louder, the rest of the band could also play at higher volumes while still being able to hear the bass. This allowed a three-person band to have the same sonic impact as a large band but left far more room for improvisation and creativity, unencumbered by the need for detailed arrangements. As with the organ trio, a 1960s-era soul jazz group centered on the amplified Hammond organ, a three-piece group could fill a large bar or club with a big sound for a much lower price than a large rock and roll band. A power trio, at least in its blues rock incarnation, is also generally held to have developed out of Chicago-style blues bands such as Muddy Waters' trio.
In addition to technological improvements, another impetus for the rise of the power trio was the virtuosity of guitarists such as Eric Clapton, Jimi Hendrix, and Rory Gallagher, who could essentially cover both the rhythm guitar and lead guitar roles in a live performance. In 1964, Frank Zappa played guitar in a power trio, the Muthers, with Paul Woods on bass and Les Papp on drums. [2] In 1966, the prototypical blues-rock power trio Cream [3] was formed, consisting of Eric Clapton on guitar/vocals, Jack Bruce on bass/vocals, and Ginger Baker on drums. Other influential 1960s-era blues rock/hard rock power trio bands were the Jimi Hendrix Experience, [4] Blue Cheer, Grand Funk Railroad, [5] the James Gang featuring Joe Walsh, and Taste. [6]
Well-known 1970s-era power trios include the Canadian progressive rock groups Rush and Triumph, [7] the American band ZZ Top, [8] the English heavy metal band Motörhead, and the Robin Trower Band. Emerson, Lake & Palmer (as well as its offshoot Emerson, Lake & Powell) is usually considered a power trio [9] [10] as Keith Emerson fulfilled the rhythm and lead playing on the keyboards that would usually fall on the guitarist, while bassist (and occasional guitarist) Greg Lake on vocals. In 1968, the power trio Manal was formed in Argentina, and were the first group that composed blues music in Spanish. [11] [12]
Budgie were a Welsh Blues rock heavy metal band from Cardiff who formed in 1967. The band are considered a classic power trio who released ten albums. Budgie were one of the earliest heavy metal bands, and, according to Garry Sharpe-Young were a seminal influence on many acts of that scene, [13] particularly the new wave of British heavy metal, and later acts such as Metallica, who covered " Breadfan" and "Crash Course in Brain Surgery" on their album Garage Inc. [14] The band have been noted as "among the heaviest metal of its day". [15]
After the 1970s, the phrase "power trio" was applied to the new wave group the Police, [16] grunge band Nirvana, extreme metal bands Hellhammer and Gallhammer, alternative rock bands Hüsker Dü and Concrete Blonde, mod revivalists the Jam, hard rock/progressive metal band King's X, post-grunge band Silverchair, alternative bands the Presidents of the United States of America, Goo Goo Dolls, Primus, Everclear, Muse, and Eve 6, pop punk bands such as Green Day, Blink-182, Alkaline Trio and MxPx, and Argentine rock bands like Soda Stereo, Divididos, A.N.I.M.A.L., and From Power Project. Also, by the 1990s, rock trios began to form around different instrumentation, from the band Morphine, featuring a baritone saxophone instead of an electric guitar, to Ben Folds Five's replacing the guitar with various keyboards, principally the piano.
Funk is a music genre that originated in African-American communities in the mid-1960s when musicians created a rhythmic, danceable new form of music through a mixture of various music genres that were popular among African-Americans in the mid-20th century. It deemphasizes melody and chord progressions and focuses on a strong rhythmic groove of a bassline played by an electric bassist and a drum part played by a percussionist, often at slower tempos than other popular music. Funk typically consists of a complex percussive groove with rhythm instruments playing interlocking grooves that create a "hypnotic" and "danceable" feel. It uses the same richly colored extended chords found in bebop jazz, such as minor chords with added sevenths and elevenths, and dominant seventh chords with altered ninths and thirteenths.
Hard rock or heavy rock is a heavier subgenre of rock music typified by aggressive vocals and distorted electric guitars. Hard rock began in the mid-1960s with the garage, psychedelic and blues rock movements. Some of the earliest hard rock music was produced by the Kinks, the Who, the Rolling Stones, Cream, Vanilla Fudge, and the Jimi Hendrix Experience. In the late 1960s, bands such as Blue Cheer, the Jeff Beck Group, Iron Butterfly, Led Zeppelin, Golden Earring, Steppenwolf, Grand Funk, Free, and Deep Purple also produced hard rock.
Instrumental rock is rock music that emphasizes instrumental performance and features very little or no singing. Examples of instrumental music in rock can be found in practically every subgenre of the style. Instrumental rock was most popular from the mid-1950s to mid-1960s, with artists such as Bill Doggett Combo, The Fireballs, The Shadows, The Ventures, Johnny and the Hurricanes and The Spotnicks. Surf music had many instrumental songs. Many instrumental hits had roots from the R&B genre. The Allman Brothers Band feature several instrumentals. Jeff Beck also recorded two instrumental albums in the 1970s. Progressive rock and art rock performers of the late 1960s and early 1970s did many virtuosic instrumental performances.
Budgie were a Welsh heavy metal band from Cardiff. The band formed in 1967, and recorded a demo the following year.
Jazz fusion is a popular music genre that developed in the late 1960s when musicians combined jazz harmony and improvisation with rock music, funk, and rhythm and blues. Electric guitars, amplifiers, and keyboards that were popular in rock began to be used by jazz musicians, particularly those who had grown up listening to rock and roll.
The U.S. state of Washington has been home to many popular musicians and several major hotbeds of musical innovation throughout its history. The largest city in the state, Seattle, is known for being the birthplace of grunge as well as a major contributor to the evolution of punk rock, indie music, folk, and hip hop. Nearby Tacoma and Olympia have also been centers of influence on popular music.
An instrument amplifier is an electronic amplifier that converts the often barely audible or purely electronic signal of a musical instrument into a larger electronic signal to feed to a loudspeaker. An instrument amplifier is used with musical instruments such as an electric guitar, an electric bass, electric organ, electric piano, synthesizers and drum machine to convert the signal from the pickup or other sound source into an electronic signal that has enough power, produced by a power amplifier, to drive one or more loudspeaker that can be heard by the performers and audience.
Blues rock is a fusion genre and form of rock music that relies on the chords/scales and instrumental improvisation of blues. It is mostly an electric ensemble-style music with instrumentation similar to electric blues and rock. From its beginnings in the early to mid-1960s, blues rock has gone through several stylistic shifts and along the way it inspired and influenced hard rock, Southern rock, and early heavy metal.
A rhythm section is a group of musicians within a music ensemble or band that provides the underlying rhythm, harmony and pulse of the accompaniment, providing a rhythmic and harmonic reference and "beat" for the rest of the band. The rhythm section is often contrasted with the roles of other musicians in the band, such as the lead guitarist or lead vocals whose primary job is to carry the melody.
Andrew Fairweather Low is a Welsh guitarist and singer. He was a founding member and lead singer of 1960s pop band Amen Corner, and in recent years has toured extensively with Roger Waters, Eric Clapton and Bill Wyman's Rhythm Kings.
Stray Dog were an American blues-based hard rock band formed in Texas, United States, in 1973. They recorded two albums before disbanding in 1975.
Distortion and overdrive are forms of audio signal processing used to alter the sound of amplified electric musical instruments, usually by increasing their gain, producing a "fuzzy", "growling", or "gritty" tone. Distortion is most commonly used with the electric guitar, but may also be used with other electric instruments such as electric bass, electric piano, synthesizer and Hammond organ. Guitarists playing electric blues originally obtained an overdriven sound by turning up their vacuum tube-powered guitar amplifiers to high volumes, which caused the signal to distort. While overdriven tube amps are still used to obtain overdrive, especially in genres like blues and rockabilly, a number of other ways to produce distortion have been developed since the 1960s, such as distortion effect pedals. The growling tone of a distorted electric guitar is a key part of many genres, including blues and many rock music genres, notably hard rock, punk rock, hardcore punk, acid rock, grunge and heavy metal music, while the use of distorted bass has been essential in a genre of hip hop music and alternative hip hop known as "SoundCloud rap".
Power Supply is the eighth album by the Welsh heavy metal power trio, Budgie, released in October 1980 on Active Records, a sublabel of RCA Records. This is the first album without original guitarist Tony Bourge, who left the band in 1978 after the album Impeckable. Power Supply showcases a more straight forward blues-influenced raw heavy metal sound that dispenses entirely with the experimental approach of the previous two albums, an approach that matched the zeitgeist of the time, reflecting the renewed and revitalised surge of interest in classic heavy metal brought about by the younger NWOBHM bands.
An organ trio is a form of jazz ensemble consisting of three musicians; a Hammond organ player, a drummer, and either a jazz guitarist or a saxophone player. In some cases the saxophonist will join a trio which consists of an organist, guitarist, and drummer, making it a quartet. Organ trios were a popular type of jazz ensemble for club and bar settings in the 1950s and 1960s, performing a blues-based style of jazz that incorporated elements of R&B. The organ trio format was characterized by long improvised solos and an exploration of different musical "moods".
You Are What You Is is a 1981 double album by American musician Frank Zappa. His 34th album, it consists of three musical suites which encompass pop, doo-wop, jazz, hard rock, reggae, soul, blues, new wave and country. The album's lyrics satirize a number of topics, including hippies, socialites, fashion, narcotics use, cultural appropriation, religion, televangelists and the military draft.
This is a glossary of jazz and popular music terms that are likely to be encountered in printed popular music songbooks, fake books and vocal scores, big band scores, jazz, and rock concert reviews, and album liner notes. This glossary includes terms for musical instruments, playing or singing techniques, amplifiers, effects units, sound reinforcement equipment, and recording gear and techniques which are widely used in jazz and popular music. Most of the terms are in English, but in some cases, terms from other languages are encountered.
Heavy metal bass is the use of the bass guitar in the rock music genres of heavy metal and hard rock. The bassist is part of the rhythm section in a heavy metal band, along with the drummer, rhythm guitarist and, in some bands, a keyboard player. The prominent role of the bass is key to the metal sound, and the interplay of bass and distorted electric guitar is a central element of metal. The bass guitar provides the low-end sound crucial to making the music "heavy". The bass plays a crucial role in heavy metal and a more important role than in traditional rock."
Heavy metal guitar is the use of highly-amplified electric guitar in heavy metal. Heavy metal guitar playing is rooted in the guitar playing styles developed in 1960s-era blues rock and psychedelic rock, and folk harmonic traditions and it uses a massive sound, characterized by highly amplified distortion, extended guitar solos and overall loudness. The electric guitar and the sonic power that it projects through amplification has historically been the key element in heavy metal. The heavy metal guitar sound comes from a combined use of high volumes and heavy distortion.
A rock band or pop band is a small musical ensemble that performs rock music, pop music, or a related genre. A four-piece band is the most common configuration in rock and pop music. In the early years, the configuration was typically two guitarists, a bassist, and a drummer. Another common formation is a vocalist who does not play an instrument, electric guitarist, bass guitarist, and a drummer. Sometimes, in addition to electric guitars, electric bass, and drums, also a keyboardist plays.
Offstage musicians and singers are performers who play instruments and/or sing backstage, out of sight of the audience, during a live popular music concert at which the main band is visible playing and singing onstage. The sound from the offstage musicians or singers is captured by a microphone or from the output of their instrument, and this signal is mixed in with the singing and playing of the onstage performers using an audio console and a sound reinforcement system. Offstage backup singers are also used in some Broadway musicals, as have offstage instrumentalists, in cases where an onstage actor needs to appear to play an instrument.
In the late 1960s, two music groups, Taste and Cream, blazed trails as definitive examples of rock's power-trios.