I have been playing double bass for 3 years now (I mainly play rock and jazz) but I finished learning L' Elephant by Saint-Saens and I need a recommendation for some new concerto(s) to work on. I want to start focusing on classical playing, but I don't really know ANY famous composers or concertos for double bass so I need to figure out what is the next step. I know that L' Elephant is a famous one that is most people's first real concerto they play on double bass, so I'm looking to learn more that are harder... any suggestions?
Also if you know what book it is in or where i can get the music that would help a lot.

Also if you know what book it is in or where i can get the music that would help a lot.
