Question

a seven-piece band sentence

Answer 1

Hi pal,
Here's the answer,
Actually,"seven-piece-band" happens in music.
The piece bands go like this... one piece = solo two piece = duet three piece = trio four piece = quartet five piece = quintet six piece = sextet SEVEN PIECE = SEPTET eight piece = octet nine piece and on... = band period.
(P.S-I didn't even get the definition.You must be expert in music,:D)
Hope that this helps you!

Answer 2

sentence of a seven piece band