| Term | Definition |
| composition in ABA form, usually in triple meter, replaced the minute and trio in 19th century | scherzo |
| compositional procedure in which a theme is stated an then altered in successive statements, occurs as an independent piece or as movement of a sonata cycle | theme and variations |
| musical form in which 1st section recurs, usually in tonic. In classical sonata cycle it appears as last movement in various forms | rondo |
| transitional passage connecting 2 sections of a composition | bridge |
| quick, aggressively rhythmic theme rising from low to high register | rocket theme |
| work or movement based on single theme | monothematic |
| ensemble music for up to about 10 players, with one player to a part | chamber music |
| a sonata for instruments | instrumental sonata |
| standard chamber ensemble of piano with violin and cello | piano trio |
| standard chamber ensemble of 2 violins and cello or violin, viola, and cello | string trio |
| chamber music ensemble consisting of 2 violines, viola, and cello | string quartet |
| standard chamber ensemble of piano with 2 violines, viola and cello | piano quintet |
| standard chamber ensemble made up of either 2 violines, 2 violas, and cello or 2 violines, viola and 2 cellos | string quartet |