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Tools
Practical things for anyone who keeps a piano at home. They run in your phone’s browser, with nothing to install.
Tuning
Is your piano out of tune?
Play a few notes and find out how far your piano has dropped, and whether a normal tuning is enough or a pitch raise is needed. Works from your phone; the audio never leaves your device.
More are coming
This section will grow around the questions that keep coming back in the forum: diagnosing mechanical faults — a key that will not come back up, a metallic sound, a squeaking pedal — and chord recognition.
None of these replaces a technician or a teacher: they are here to help you understand what you are dealing with, and to arrive prepared when you ask for help. If you have a problem right now, ask in the forum: there are tuners and restorers who answer.