Answer:

concerto

Answer	Crossword Clue
CONCERTO	Form used by Vivaldi
CONCERTO	Musical offering
CONCERTO	"Emperor .."

CONCERTO	Piece for orchestra and soloist
CONCERTO	Orchestral offering
CONCERTO	Orchestral piece
CONCERTO	"Rhapsody in Blue" category.
CONCERTO	Musical work.
CONCERTO	"Emperor" or "Warsaw."
CONCERTO	Musical work
CONCERTO	"Emperor" or "Brandenburg"

CONCERTO	"Warsaw" piece
CONCERTO	Musical composition
CONCERTO	Symphonic composition
CONCERTO	Glass production
CONCERTO	One of two by Liszt
CONCERTO	Bartók's "... for Orchestra"
CONCERTO	Vivaldi composition