Sonata
Part of speech: noun
Definition: A musical composition for one or a few instruments, one of which is frequently a piano, in three or four movements that vary in key and tempo
Concerto
Part of speech: noun
Definition: A piece of music for one or more solo instruments and orchestra.
Example sentence: The cello is a hero because of its register - its tenor voice. It is a masculine instrument, whereas the violin is feminine because of its soprano pitch. When the cello enters in the Dvorak Concerto, it is like a great orator.