Sonata a 4 for 2 oboes, bassoon and b.c. Echo sonata a 4 for two oboes, obbligato bassoon, and b.c. Sonata in C for two oboes and b.c. Sonata in C minor for oboe, obbligato bassoon, and b.c. Sonata in G major for oboe, obbligato bassoon, and b.c. Concerto for oboe, obbligato bassoon, and b.c. Sonata for Bassoon and Piano