Trio

n. group of three persons; group of three things; musical composition for three instruments or voices, group of three singers or musicians

A trio is a group of three identical or similar objects, or a grouping of three persons for a common purpose. (See tuple for alternative names.)In musicTrio (music), three people performing music in some way Piano trio (piano, violin, cello)String trio (violin, viola, cello)Trio (jazz) (piano, double bass, drums)Clarinet-violin-piano trio (clarinet, violin, piano)Power trio (electric guitar, bass guitar, drum kit)Harmonica trio (chromatic harmonica, bass harmonica, chord harmonica)The middle section of a piece in ternary formThe third section of a march (music)Trio (band), a German pop band who wrote "Da da da"The Trio, one incarnation of the Trey Anastasio BandTrio (album), a 1987 recording by Dolly Parton, Emmylou Harris and Linda Ronstadt. The group is also sometimes referred to as Trio.Trio 2 (album), a 1998 recording by Dolly Parton, Emmylou Harris and Linda RonstadtThe Trio, a live 1961 album featuring a jazz trio led by the Canadian jazz pianist Oscar Peterson
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TRIO! was an acoustic jazz fusion supergroup, formed in mid 2005. It consisted of bassist Stanley Clarke (Return to Forever), jazz violin virtuoso Jean-Luc Ponty (The Mothers of Invention, Mahavishnu Orchestra), and renowned banjoist  Béla Fleck, whose acclaimed group Béla Fleck and the Flecktones was on a one year hiatus.
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Noun
1. the cardinal number that is the sum of one and one and one
(synonym) three, 3, III, threesome, tierce, leash, troika, triad, trine, trinity, ternary, ternion, triplet, tercet, terzetto, trey, deuce-ace
(hypernym) digit, figure
2. a musical composition for three performers
(hypernym) musical composition, opus, composition, piece, piece of music
3. three performers or singers who perform together
(hypernym) musical organization, musical organisation, musical group
4. a set of three similar things considered as a unit
(synonym) triad, triplet
(hypernym) set
(hyponym) trilogy
5. three people considered as a unit
(synonym) threesome, triad, trinity
(hypernym) gathering, assemblage
(hyponym) triumvirate

n. trio, threesome, group of three persons, group of three things; musical composition for three instruments or voices; group of three singers or musicians

n. trio, threesome