Assertion: wrapped mallet | /r/ObjectUse | used on marimba
Facets:
value: mostly
type: DEGREE
value: with softer keys
type: OTHER
Source sentences:
text: Wrapped mallets , mostly used on marimba, vibraphone and other instruments with softer keys (though they can be used on more durable instruments as well), have heads of kelon, rubber, nylon, acrylic or other medium-hard materials wrapped in softer materials like yarn, cord or latex.