I began "part timing" with a couple of bands in the 60's which eventually turned into working at least every weekend and most holidays for a couple of decades. I now wish I could get those holidays back. In '91 I sold my day-time business and took on a 6 night a week gig at a restaurant. First off, it killed the opportunity to play the better paying once-in-awhile gigs....and secondly, I got burned out in about 11 months. I quit and got back into the weekend business and some assisted living jobs during the week. If you call that "part time", then I can tell you I enjoy part-timing a lot more than working full time in a restaurant setting.
The senior jobs also offer the opportunity to do a variety of things I could never do in a restaurant. Between the variety of music played, the humor, the one on one interaction with audience and the appreciation showed by the audiences, I much prefer being a "part-timer". Another bonus....most of the jobs are during the week and i get weekends off.
Eddie