Brian Bedford is undoubtedly excellent, and I also support the idea of Jon Loomes, and if you feed his stuffed cat tequila (don't ask) you may well be able to get him to add pretty well any instrument to back you. He's one of those infuriating "real musicians" to whom you can hand an instrument invented a nanosecond ago in the Delta quadrant designed to be played using the second thirty-two tentacles and controlled by ESP, and in five minutes he's playing tunes on the sodding thing. And despite that he's nice and supportive of lesser musicians too (as, I'm sure, Brian Bedford is too).