Jeremy:
He's from a nation of expatriated Jamaican cross-dressers. He took violin when he was seven, and learned the ancient art of feather-fighting from a Cuban dojo. He describes his work as a "musical adventure". He is close to removing all of society's layers and realizing his inner Ninja.
Boris:
Born to well-meaning but uncultured jocks, he left the military academy to pursue his love of the bass fiddle. Known for his ability to twirl his instrument about his head, he often does carnivals to pay the bills.
Geoffrey:
Has a van.
Carla and Winnifred:
Hired ex-hippies to give the ensemble the "cult" or "groupee" feel.
All work for the shadow government elite council, and are holding a meeting entirely in morse-code eyeblinks. Each CD has liner notes made of a blotter paper holding a carefully engineered crystelline substance. The message is double-encrypted, such that the recipient must first partake of a substance encrypted from his or her own genetic code. The hallucinogen is then ingested, and the message is displayed to the otherwise dancing individual.

The dropped cymbal is a red herring.