What is mutually contrived or planned; agreed on; as, concerted schemes, signals. Concerted piece (Mus.), a composition in parts for several voices or instrument, as a trio, a quartet, etc called?

concerted — Mutually contrived or planned; agreed on; as, concerted schemes, signals. Concerted piece (Mus.), a composition in parts for several voices or instrument, as a trio, a quartet, etc. (Webster's 1913.)

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