Many, but two of my favorites are:
Fast walking: Jackson Browne Running on Empty & others
Slow walking: Eagles; Hotel California & others
Lots of Elton John, David Grisman, Jerry Garcia (a diabetic!)also the Grateful Dead.
Fleetwood Mac, Bonnie Raitt & the Beatles are great walking music!
Natalie McMaster's fiddle music is good too. She's from Cape Breton, Nova Scotia.
Well, you asked
Mich