The most famous bassoon concerto in B flat major was composed by wolfgang amadeus mozart Amadeus Mozart (1756-1791), a famous Austrian classical musician, and the composer of Hungarian Fantasia was K.M. Weber K.M. Bebep (1786-1826).
The commonly used bassoon etudes are: Milde 25 students in scales and chordopus 24 for bassoon and Milde 26 concert studies for bassoon opus.