Dee Palmer was a terran piano virtuoso. He was hired by the Terra Family to act as a piano instructor to Clara Terra. However, his student eventually abandoned her lessons, courtesy of Palmer's refusal to respond to her attempts to flirt with him.
References
DeCandido, Keith R. A. (November 28, 2006). StarCraft: Ghost: Nova. Simon & Schuster (Pocket Star). ISBN 0-7434-7134-2