Yes, I spend entirely too much time staring out a windshield with nothing much to occupy my mind - so I come up with things like this.
We are all familiar with various siblings in bands together, but what about siblings with separate music careers? Leaving out coat-tail acts like Mike McGear & Simon Townshend, I come up with these:
Pete, Peggy, and Mike Seeger
Joan and Mimi Baez
James, Livingston, & Kate Taylor
Christy Moore & Luka Bloom
Ronnie & Donnie Van Zandt (yes, I limit it to those 2; the Johnnie Van Zandt Band never really did anything, and I don't recognize Lynyrd Synyrd: The Graverobber Edition as legitimate)
John & Mario Cipollina
Stevie & Jimmie Vaughn
Dusty & Rocky Hill
Loretta Lynne & Chrystal Gayle
Angus/Malcom & George Young
Harry & Tom Chapin
Fred & Ed Holstein
Who am I missing?
Peter (who really needs to find a job that engages his brainpan, so he can spare you this nonsense)