I love the Snark (TM, most likely) clip on tuner for all of my stringy thingies, though I'm able to clamp it to the structure that holds the chord bars & that may not be possible with all autoharp formats. It fits on the end of a bowed psaltery and on the ridge of my lap harp. it has a switch between microphone or vibration tuning, so I can use it for finding pitch when singing as well.

Previous tuners included one where I had an alligator clip with a line that plugged into the tuner that dated from an autoharp class with Becky Blakely in the mid 90s. Early electronic tuners didn't have the range the new ones do, and for $20 now you can tune wee bitty strings that a $60 Korg tuner didn't register back in the early 80s. Even with the alligator clip on, I'd have to tune the shortest strings by a tent of paper and sympathetic vibration with a lower tuned string with that Korg.

One of the great joys of a clip-on tuner is tuning by vibration in noisy situations, around the edge of sessions, at festivals where all sorts of music is going on around you. If I'd been trying to play in an era before electronic tuners, I'd have taken up an instrument that didn't need tuning, I'm sure!

Joanne in Cleveland