gralla
gralla is a dulzaina or musical instrument.
In detail
gralla is a dulzaina or 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
“Gralla (instrument)”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q15294559: gralla
Consult the source