Beat trainer
When two notes of an interval are nearly in tune, the sound swells and fades a few times a second. These are the beats a tuner listens for. Practise hearing them here, with synthesized piano notes.
Hear the beat
Press Play and listen for the sound swelling and fading. The dot flashes with each swell. Move the slider to make the beat faster or slower.
4.0
beats/s
Flashes while playing
Which one beats faster?
The same interval plays twice, one after the other. Listen to the beat in each, then choose.
First
Second
How fast is the beat?
One interval plays. Listen for the swells, then pick the beat rate.
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