Free harmonica tools
Three tools I use with students, available here as free demos. They work in your browser: nothing to install and no registration.
Position Calculator
Choose any two values between song key, harmonica key and position. The calculator finds the third and helps you understand where the tonal center sits on the instrument.
Ear Builder
Hear a note, reproduce it on the harmonica and train the link between your ear and the instrument.
Bending Lab
A tuner built around harmonica bends. Use pitch evidence instead of “it feels close enough.”
Why these three?
They address three common places where self-taught harmonica players get stuck: understanding positions, controlling bend pitch and turning listening into a playable response.
Positions
Position Master makes the relationship between harmonica key, song key and position visible.
Bending
Bending Lab gives objective pitch feedback so you can connect physical control to a real note target.
Ear training
Ear Builder closes the loop: listen, answer, verify.