Most shakers (think of maracas and similar instruments) do not have recognizable pitch. But you can make shakers that do have pitch, and it follows that you can have sets of shaker tuned to musical scales. This video explores that idea.
For more of Bart's instruments, look for additional videos in the Bart Hopkin youtube channel or visit the Instrumentarium at www.BartHopkin.com.
Bart has also recently released an album of his music, made primarily on instruments he's made. It's called Audiorium, and it's available through the usual download and streaming services. More info at https://barthopkin.com/audiorium/.
