I have been fine-tuning my "Code Time" music for over a decade that is conducive of getting and staying in the flow. An eclectic mix of ambient, tango, jazz, techno, progressive with a hint of trans.
Pandora:
https://pandora.app.link/nKUbxNb4m2.
Spotify:
https://open.spotify.com/playlist/71xXPTrKmQ72TpLZSV1DAU
Google Music: https://play.google.com/music/playlist/AMaBXynw1A1Qs30Ii8AKR...