Oliver uses dynamic, sonorous, and timbral contrasts uniquely, from his haunting Ellingtonesque opening (muted trumpet, trombone, clarinet) through the assertive baritone sax, the growl trumpet (Oliver), the celeste, the temple block, the bluesy guitar, and the almost pianissimo saxes—all perfectly contained by Organ Grinder's Swing's careful introduction and coda.
Source: wiktionary