[simply Nathan]

The only musician in the single GURPS campaign I played in was the IQ 8 "ninja" martial artist. He had a single point in Musical Instrument(Guitar) and people at the inn were constantly booing him or begging him to stop playing.

Sometimes there's comedy potential in incompetence, which our two IQ 8 warrior-types had in spades, the ninja far more than the dwarf (player with Impulsive taking Trained by a Master, Weapon Master, Common Sense, Impulsive, and IQ 8 all on the same character in a 100 point game...).