Concerto pour basson in B flat major,K.191 Concerto for bassoon in B-flat major, RV 501 Concerto for bassoon in B-flat major, RV 503 Concerto no.2 in B flat major,op.19 Concerto no.27 in B flat major,K.595 Concerto No. 27 in B flat major, K. 595 Concerto no.15 in B flat major,K.450 Concerto no.18 in B flat major,K.456 Concerto no.22 in E flat major,K.482 Concerto for Bassoon and Orchestra in B flat major, K.191