| Term | Definition |
| organ, clavier, harpsichord, virginal:word used in england as a generic term for all types of plucked keyboard instruments | virginal |
| stringed keyboard instrument popular in the Renaissnace and the Baroque that is capable of unique expressive devices not possible on the harpsichord | Clavichord |
| generic word for keyboard instruments, including harpsichord, clavichord, piano and organ | clavier |
| early baroque keyboard instrument in which strings are plucked by quills instead of being struck with hammers, egs cembalo: short form of clavicemabalo, the italian word for harpsichord, Clavecin: French word for harpsichord | harpsichord |
| wind instrument in which air is fed to the pipes by mechanical means, pipes are controlled by 2 or more keyboards and a set of pedals eg.1. regal: small medieval reed organ 2.positive: small single manual organ, popular in the Renaissance and Baroque eras 3. Portative: medieval organ small enough to be carried or set on a table, usually with only one set of pipes | organ |
| instrumental work intended to precede a large work | prelude |
| baroque form in moderately slow triple meter, based on a short, repeated base line melody that serves as the basis for continuous variation in other voices | passacaglia |
| virtuoso composition, generally for organ or harpsichord, in a free and rhapsodic style, in the baroque, if often served as the introduction to a fugue | toccata |
| free instrumental piece of fairly large dimensions, in an improvisational style, in the baroque, it often served as an introductory piece to a fugue | fantasia |
| short baroque organ piece in which a traditional chorale melody is embellished | chorale prelude |
| baroque organ piece in which a chorale is the basis for a set of variations | chorale variations |
| intstrumental genre in several movements for soloist or small ensemble | sonata |