Assertion: accordion's sound module | /r/HasProperty | internal
Facets:
Source sentences:
text: Many 2010s era digital accordions have an internal sound module.
text: An accordionist with a digital accordion which has an internal sound module can plug the MIDI out into an external sound module to gain access to more sounds or features such as a sustain pedal or separate left hand and right hand outputs, if these are not available on their instrument.