Ondioline
Ondioline is a keyboard instrument or electronic musical instrument.
Overview
Electronic keyboard instrument.
In detail
Ondioline is a keyboard instrument or electronic musical instrument.
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Ondioline”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q490054: Ondioline
Consult the source