Ear training
Interval Ear Trainer
Train a focused interval set or all twelve. Playback mode changes take effect immediately; the answer always comes from the exact semitone distance used to generate the tones.
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How StaveWave keeps this accurate
The selected interval is stored as an integer semitone distance. The second MIDI pitch is root + that distance, and the displayed interval name is looked up from the same value. Playback direction changes presentation only.