Is anyone using this? Is it any good? http://us.playhohner.com/fileadmin/hohner_group/hohner/09_documents/service/manual_harmonica_tuner_50_english.pdf
I use the accordion version from the same guy. That version allows you to tune up to three reeds at a time. Works great for all types of harmonicas (bas, tremolo, chromatic, octave, diatonic) as well as accordions. =========== Winslow