DescriptionBritannica Oboe First Two Keys.jpg English: Musical notation showing the tones corresponding to the first two keys introduced to the oboe at the...
Two other keys facilitated the production of acute harmonics. English determination method or standard: SHA-1...
DescriptionBritannica Oboe Schnitzer Bassoon Keys.jpg English: Musical notation showing the tones produced by the two keys of the 16th century bassoon...
