Roland D-50
Roland D-50 is a synthesizer or synthesizer model.
Overview
Polyphonic 61-key synthesiser produced by Roland.
In detail
The recorded date of publication is 1987.
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
“Roland D-50”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q744418: Roland D-50
Consult the source