| A | B |
| A cappella | without musical accompaniment |
| Aria | an elaborate vocal piece sung by a single voice |
| Cadence | balanced, rhythmic beat of poetry, dance or music |
| Cresendo | a gradual increase, especially in volume |
| Dissonance | a harsh, disagreeable combination of sounds |
| Libretto | the text of an opera or other dramatic musical work |
| Motif | repeated significant phrase that identifies an idea |
| Octave | the musical interval of eight full tones |
| Sonata | an instrumental musical composition |
| Staccato | in music, cut short crisply; disconnected |