Quote Originally Posted by JakeGuilbo View Post
Spotify has a Cello Drone album that is awesome because you get all the overtones, you can probably listen from your phone with the free service but I pay for premium so I don't know
This is the one I use as well and also like that it has lots of overtones. This album is available on YouTube Music, which is where I listen to it, and probably lots of other streaming services. I like to cast it to a Bluetooth speaker and play along that way.