Sechs Trios 4-6 composed by Friedrich Hartmann Graf. Edited by Ingo Gronefeld. For 2 Flute, Basso Continuo. Moderately difficult. Score and parts. Published by Edition Kunzelmann (PE.GM0730B).
Graf was a successful flautist, composer and conductor in Germany in the mid-to-late 1700s, but despite that these moderately difficult trios have not been published since 1771.
Six Trios, Op.3: No. 4 in E minor, No. 5 in F, No. 6 in D (score and parts).