Solo piece ensemble piece and what else

Solo, a piece of music in which only one instrument performs for the entire set. Concerto, a piece in which the main instrument is the lead, and the full orchestra and percussion ensemble are the supporting cast.

Ensemble, (French) one of the forms of instrumental performance. Divided into small ensemble, folk ensemble, string ensemble, wind ensemble, and orchestral ensemble.

Different types

Concerto: Types of concerto include double concerto, triple concerto, string quartet, woodwind quartet, quintet music concerto, and so on.

Ensemble: types of ensemble include small ensemble, folk music ensemble, string ensemble, wind ensemble, orchestral ensemble, etc.

Solo: Types of solos include accordion solo, piano solo, etc.

Instruments differ

Concert: The concert instrument is usually several solo instruments.

Ensemble: the ensemble is usually several instruments or groups of instruments.

Solo: the solo instrument is usually one instrument.