I don’t listen to much music when I’m doing the first draft, but having familiar stuff on random play on the computer helps rhythm and flow of the endless redrafting (it has to be familiar stuff, so it works mostly on my back brain). The older I get, the less distraction I can tolerate.
Some of my novels have a soundtrack; some don’t. Players doesn’t, because I think that using musical preferences as a short-hand for characterization in thrillers is a bit of a tired cliche - and too often it’s a form of showing-off by the author too.* I suspect that if Summer Ziegler listens to anything, it would be jazz-lite solo singer stuff; she certainly doesn’t slump down in an easy chair at the end of the day and sip bonded bourbon while listening to Dock Boggs.
*I know, I know: I'm guilty of it in Whole Wide World, but the punk thing is supposed to be part of John's voice rather than a quirky character tic. Honest.
On the other hand, Cowboy Angels, which was partly inspired by the idea of the lost, weird America Greil Marcus wrote about in Lost Republic does have a soundtrack. Here it is (the songs on it are either name-checked or hinted at in the text, and appear in narrative order):
Man Gave Names To All The Animals - Bob Dylan
Hook And Line - Hatton Brothers
Acony Bell - Gillian Welch
Kentucky Avenue - Tom Waits
Who Knows Where the Time Goes - Fairport Convention
Wolf Among Wolves - Bonnie ‘Prince’ Billy
America - Simon & Garfunkel
Romance in Durango - Bob Dylan
Cold Cold Cold - The Handsome Family
Lost in the Flood - Bruce Springsteen
I See A Darkness - Johnny Cash
Slow Train Coming - Bob Dylan
I Dream A Highway - Gillian Welch
Train Song - Tom Waits