BPP-CC | Boston chromatic pitch pipe
chromatic pitch pipe, C-C
"The Boston BPP-CC is a 13-tone chromatic pitch pipe. This makes it suitable to match just about any instrument, such as guitar, bass, violin, ukulele and more. For vocalists, the BPP -CC is also a handy gadget to have in your pocket . Simple, effective, pure and never a dead battery.