Assertion: marimba's range | /r/HasProperty | 4 octaves
Facets:
value: for many decades
type: TEMPORAL
Source sentences:
text: There is no standard range of the marimba, but the most common ranges are 4 octaves, 4.3 octaves and 5 octaves; 4.5, 4.6 and 5.5 octave sizes are also available.
text: The most common, standard range of a marimba is four octaves.
text: The standard range of the vibraphone has been three octaves (F-F) for many decades, but recently manufacturers have started to offer extended range vibraphones, extending down to C for a 3-1/2 octave range, or sometimes adding notes to the upper range to create a four-octave vibraphone.