[tarentel]

I actually watched someone give a presentation at spotify on exactly this when I worked there. This was probably about 5 years or so ago. I have no idea what happened to that project. Probably the biggest issue would be getting people to give you location permissions but they also talked about working around that. It's a big org though they kill off ideas all the time.

[bombcar]

It seems easy enough to "sell" it to people listening. Location, speed based track selection.