The note check accepts any octave. The fingerings shown here use one comfortable lower register, with the octave key off.
Using the first fingering shown for each note. Move these fingers together; keep the other keys in place.
Offline practice: open this page while online once so the trainer can be saved for offline use. Allow microphone access when you start practicing.
Phone: use your browser’s Install app command, or Safari’s Share → Add to Home Screen. Your progress stays in this browser on this device.
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