If the music is going to be essentially "background" music, then trot down to your local CD retailer and buy one or two "Golden Oldies" compilations of pop and rock music from the era(s) of choice (60's, 70's, 80's, etc). Rhino Records has done a good job with many of its compilations, and might be a good starting point. A compilation of oldies provides something for everyone, and you can simply put the CD in the player and hit the "Play" button. You can even set your CD player to play in an endless loop...
4 must have hours of baby boomer music?
We having a big housewarming party in a few weeks. Mostly baby boomers: 40+ Don't want to be messing around all day (4 hour afternoon party) with choosing music and getting crazy. What are the four hours that I should have for this gig? We're talking about 5 or 6 cds. thanks in advance, warren :)