Musical accordance or harmony; concord.

A musical entertainment in which several voices or instruments take part.

Performance presented to a seated audience

a performance of music by players or singers not involving theatrical staging

a 'contest' in Italian, a contest of the orchestra and the audience, first of all)

a live performance , especially musical, for the benefit of an audience

a music event, and that's what we have here

a performance in school that is at least one hour in length

a public performance of music

a sort of theatrical drama

A concert is a live performance, usually of music, before an audience. The music may be performed by a single musician, sometimes then called a recital, or by a musical ensemble, such as an orchestra, a choir, or a musical band. More informal names for a concert include "show" and "gig".