1A set or group of three people or things.

1. 1.1 A group of three musicians.
   a jazz trio

   Example sentencesExamples

   • He has played at Jazz festivals across Europe and the USA and in various Jazz quartets and trios and as a member of the Dutch Jazz Orchestra.
   • She sings with jazz duos and trios around Yorkshire as well as organising European tours for local jazz bands.
   • Visitors can be entranced by the different sounds of a trio, quartet or quintet.
   • The host school itself has six groups taking part a brass band, brass ensemble, junior brass trio and brass quintet, as well as a wind band and a clarinet choir.
   • The beautiful sense of orchestral chamber music the trio brought to the Largo was memorable.
   • Though she has gigged with a jazz quartet, a jazz trio, and as the lead voice for a funk / R & B band, she's now focusing on her own thing.
   • He had formed a violin trio with his two brothers after giving up a career in medicine for music.
   • Over the years, he has led big bands and played with trios, quartets, and other types of groups as well as playing solo.
   • He is joined by a trio of musicians who have a progressive vision of what jazz ought to be.
   • By the park entrance, a trio of young musicians performed unamplified bluegrass tunes.
   • Angus can perform with as few as a trio of fellow musicians.
   • The musicians from the Laureate trio staged a virtuoso performance at a concert marking the launching of their new album on Monday.
   • As a child, you were already playing in a family chamber music trio.
   • Though the small room was jam-packed that evening, it proved to be a very intimate setting for a jazz trio concert.
   • The concert opened with the trio performing Mozart's A Spring Rondo, which set the tone for the evening.
   • The trio perform jazz favourites from Dixieland to ragtime, boogie woogie and swing.
   • A jazz trio will play and there will be a magician and circus performer.
   • If you enjoy a little more excitement, successful duos, trios and other small ensembles with mixed instrumentation can begin at a surprisingly early age.
   • He believes that you increase your understanding by playing in small ensembles - three, four or five people in trios, quartets and quintets.
   • The trio performed its first concert as part of the Arts Week.
2. 1.2 A composition written for three musicians.
   Chopin's G minor Trio

   Example sentencesExamples

   • We learn, for instance, how his wife played a crucial role in the composition of the sublime trio at the end of Der Rosenkavalier.
   • The three sing a wondrous trio where Claire supports the voices with some strikingly dark instrumental timbres.
   • This trio was composed the same summer as the B Minor quintet Op 115.
   • Composed in 1797 to 1798, this is the work of a young Beethoven who, after moving on to the string quartet genre after the three trios of op. 9, never wrote another string trio.
   • Wind trios for such combinations as flute, clarinet, and bassoon have been written by a number of composers, as have brass trios for trumpet, horn, and trombone or other combinations.
3. 1.3 The central, typically contrastive, section of a minuet, scherzo, or march.
   Example sentencesExamples

   • He is at his best in the many lyrical sections of the piece, which include most of the outer movements as well as the wistful trio of the middle scherzo movement.
   • In the second movement, for example, it appears pretty much as itself, while in the trio of the scherzo third, Antheil transforms it into a fugal subject.
   • This is particularly true of the Classical minuet and trio, where the ternary structure arises from the repeat of the minuet after the trio, though each section may be in either binary or ternary form.
   • A contrasting trio section in staccato thirds perhaps implies a child's tip-toe dance.
   • Formally, the Posthorn episode takes the place of the trio in the would-be scherzo of the third movement.
4. 1.4 (in piquet) a set of three aces, kings, queens, jacks, or tens held in one hand.
   Example sentencesExamples

   • The art of the bluff used in Ambusch is to trick your opponent into laying down a winning trio before they wanted to even if you do not have a winning trio in your hand.
   • For example, a hand of 10, Q, K and 4 is a trio, because if the Four of Clubs were a black Jack it would have been a winning hand.
   • Three aces are the best trio and three twos are the lowest.
   • Similarly, the player with the better trio or quatorze can also score any other trios and quatorzes they hold, but the other player scores nothing for any trios or quatorzes.
   • Once a player has put down the initial contract for the round, he is allowed in subsequent turns to put down cards from his hand to extend any trios or escaleras which are already on the table - his own or other people's.