ORCHESTRA n.
Strictly: A band suitable for the performance of symphonies, overtures, etc., as well as for the accompaniment of operas, oratorios, cantatas, masses, and the like, or of vocal and instrumental solos.
PRELUDE n. 3 definitions
An introductory performance, preceding and preparing for the principal matter; a preliminary part, movement, strain, etc.; especially (Mus.), a strain introducing the theme or chief subject; a movement introductory to a fugue, yet independent; -- with recent composers often synonymous with overture. The last Georgic wa…