Bend Lab — Harmonica Bending Practice

Practise every draw bend, blow bend and overblow on a diatonic harmonica. Play into your mic and a live tuner tells you how many cents off you are — plus two bending games to build range and accuracy.

A diatonic harmonica in C has 12 bendable pitches: draw bends on holes 1, 2 (two steps), 3 (three steps), 4 and 6, and blow bends on holes 8, 9 and 10 (two steps). Bend Lab lights up one at a time and measures how many cents you land from the target.

How to bend harmonica notes · Bending exercises · Song library