We could have a BC number, similar to mathematicians' Erdős number or the Kevin Bacon number for actors.
If you have bought a bass off Basschat, or sold one, then you have a BC number of 1. If you bought/sold a bass off/to someone with a BC number of 1, then you have a BC number of 2, and so on.
It would be interesting to know Kevin Bacon's BC number, and if anyone actors on BC have a Bacon number. Anyone with a low Erdős number- I salute you!