SomaFM is a cost-free, ad-free San Francisco-based streaming radio website. They have 30ish stations and even mobile phone apps. It’s a healthy chance to expose yourself to musical styles that you didn’t realize would make spectacular journey companions. A few of my favorites stations —
Groove Salad: A nicely chilled plate of ambient/downtempo beats and grooves.
Secret Agent: The soundtrack for your stylish, mysterious, dangerous life. For Spies and PIs too!
Fluid: Drown in the electronic sound of instrumental hiphop, future soul and liquid trap.
Boot Liquor: Americana Roots music for Cowhands, Cowpokes and Cowtippers