Assertion: concerto's key | /r/ObjectUse | used in tranquil air
Facets:
value: in clarinet
type: LOCATION
Source sentences:
text: , G minor and C minor were reserved for heroism and tragedy, such as his Requiem in D Minor or his G Minor symphonies, while the keys of A flat, B flat and E flat are used in the tranquil Air in A Flat or Clarinet in B Flat.