Blog
Notes on singing in tune, on how pitch is measured, and on what we find while building the apps. Numbers come with their sources.
Cents, semitones and what listeners forgive
A semitone is 100 cents. Listeners forgive a voice about twice as much as an instrument, and the threshold for "out of tune" differs from person to person.
Why you sing off-key (it's not your ears)
Most adults who think they are tone-deaf hear pitch perfectly well. What is broken is the link between the ear and the voice — and that link can be trained.