Reed (mouthpiece) a mandrel for bassoon reeds. Bassoon reeds are wrapped with nylon thread or cotton thread, depending on the musician's preference. Oboe reeds are most commonly tied with nylon thread. Finishing both bassoon and oboe reeds requires the reed-maker to scrape along the cane section of the reed with a scraping knife to specific dimensions and lengths depending on the reed style and the musician's preference. Bassoon and oboe reeds are finished when the reeds play in tune or can make a sufficient "crow"-like noise. Quadruple reed instruments have four reeds, two on top and two on bottom. Examples of this
Oboe Concerto (Marcello) on a modern oboe. Editions of the D minor version of the oboe concerto with an ornamentation which is better in line with the possibilities of a baroque oboe have been proposed since the late 20th century. Another transcription of the concerto, as concerto a 5 for oboe, strings and continuo in C minor, is found in a 1717 manuscript. The type of errors in this manuscript seems to suggest that the transposition from D minor to C minor may have been produced by its scribes while copying. This manuscript writes the composer's name as "Marcello" without specifying a first