#1 by Carlo Saracini
#3 by Sebastiano Conca
#9 by Jan Cossiers
#13 probably (the boy blowing on something on the far right)
#17 by De Crayer
#20 by Jordaens (although it could be, arguably, “just a flute”)
#25 by Domenichino
#29 by Van Der Goes (although it could be, arguably, “just a flute”)
#33 by Jan Steen
#39 by Von Aachen
#45 by Reni
#47 by Bronzino
IOW, fully 25% of these selections.
I learned something in searching for Zampognari.
Each of these works evokes differing emotions. Fantastic!
As ever, your observational initiative wins the day, John.
And what better occasion on which to blow those pipes!
The zampognari are often accompanied by another shepherd playing a piffero (fife), also called a ciaramella. Glad you found so many of the paintings having these instruments.