The Korg AW-1 Micro Tuner is perfect for harpists! It clips onto a tuning pin for hands-free tuning. The clip is also a pick-up so the vibrations go directly into the tuner. And, it’s extremely small — easy to slip into your pocket. Do you tune to 442? It’s easy to calibrate. Easy to read, small, accurate, hands-free — what more could you want?