Assertion: middle pedal | /r/CapableOf | sustain note
Facets:
value: from middle c
type: LOCATION
value: in the bass register
type: OTHER
Source sentences:
text: On some upright pianos and lower-quality grand pianos, the middle pedal sustains all notes in the bass register, but this is not a true sostenuto pedal.
text: First, it only sustains notes from Middle C and lower.