I'm fairly partial to the drone of a tanpura/tambura/tamboura (a bit like a sitar, only fretless). I visited with this swami for for a bit, and he gave me a rec

I'm fairly partial to the drone of a tanpura/tambura/tamboura (a bit like a sitar, only fretless). I visited with this swami for for a bit, and he gave me a recording as a background for Japa practice - it's incredibly powerful concentration music.