A concert piece is a musical composition that is performed live in front of an audience. The four solutions for the term CONCERT PIECES are AMPS (4 letters), GRANDPIANOS (11 letters), ARIAS (5 letters), and SONATAS (7 letters). AMPS are electronic devices used to amplify sound, such as electric guitars and basses. GRANDPIANOS are large, acoustic pianos with a longer soundboard than other pianos. ARIAS are operatic solo pieces that are usually accompanied by an orchestra. SONATAS are instrumental compositions that are typically composed of several movements.