acapella

As a noun symphony

is an extended piece of music of sophisticated structure, usually for orchestra.

As an adverb acapella is

.

As a noun choir

is singing group; group of people who sing together; company of people who are trained to sing together.

As an adverb acapella is

an alternative spelling of lang=en.

As an adverb acapella

is an alternative spelling of lang=en.

As a noun barbershop is

the place of business of a barber; a store where a person (usually a man) can go to get a haircut.

As an adverb acapella

is an alternative spelling of lang=en.

As a noun riff is

a repeated instrumental melody line in a song.

As a verb riff is

to improvise in the performance or practice of an art, especially by expanding on or making novel use of traditional themes.