The mediaeval wind instrument called a shawm typically had a cover over its keys called what?
Fonticulus Fontanel Soft spot Fonticuli cranii Fontanell Fontanelle Depressed fontanelle Fontanelles Soft spots Fonticuli Fontanels
fontanels soft spot fonticulus soft spots depressed fontanelle fontanel fonticuli fontanelles fonticuli cranii fontanell fontanelle
fontanelle
WikipediaEntity
Fontanelle