Assertion: button accordion | /r/CapableOf | feature button
Facets:
value: in place of piano keys
type: LOCATION
value: for playing melodies
type: PURPOSE
Source sentences:
text: Chromatic button accordions feature buttons in place of piano keys and are often smaller and more portable than piano accordions.
text: Button accordions feature buttons in place of piano keys and are often smaller and more portable than the standard accordion.
text: A button accordion features buttons instead of piano keys for playing melodies.