I'm looking for duets for the flute and bass. Challenging pieces in minor keys are preferred. Names of composers, recordings or written music are helpful. Thanks in advance.

I had the same problem, I wanted Flute and Basoon. No works for that,I seems.

But you can try several Sonatas from Telemann and Haendel, they are for Flute and Basso Continuo. I think the Basso can be played Bass without problems.

I find Haendel's somewhat easier that Telemann's, but 's your choice, depending on your level.

Right now I am working on Haendel's Hallenser Sonate I, in A minor.

Good luck