THESAURUS
Vorspiel, act, afterpiece, bit, chaser, coming out, concert overture, curtain, curtain call, debut, descant, divertimento, divertissement, dramatic overture, embarkation, embarkment, epilogue, exode, exodus, expository scene, finale, first appearance, floating, flotation, hoke act, inaugural address, inauguration, induction, initiation, installation, installment, interlude, intermezzo, intermission, introduction, launching, maiden speech, number, opener, operatic overture, overture, preliminary, prelude, prologue, routine, scene, shtick, sketch, skit, song and dance, stand-up comedy act, striptease, turn, unveiling, vamp, voluntary
