Learn an usul with your hands, not just your eyes. Hear one cycle, then tap the next two — düm on the left, tek on the right — and see which strokes landed, which hand you used and how far off the beat you were.
Press start: one cycle of the usul plays as a guide, then the next two are yours. Tap Düm with the D key or the left pad and Tek with K or the right pad — Te and Ke, the two halves of a split tek, are light strokes and go on the right too. Each stroke counts as a hit when you land within 150 milliseconds of it, or half a zaman at fast tempos. The pattern then shows every stroke of your second cycle: how early (−) or late (+) you were, and whether you used the right hand.
The seven usuller and their strokes come from the same data as the Turkish Usul pages, where every pattern is checked against two published references. The click sound marks düm low and tek high; the timing is exact, the timbre is not a real kudüm.
Why do my taps show a delay even when I feel on time?
Bluetooth headphones and some sound cards delay the sound by tens of milliseconds, so you
tap to a click that reached you late. Use wired headphones or the device's speaker for the
most honest numbers.
What is a zaman?
The counting unit of an usul. Aksak has nine zaman, Düyek eight; the tempo box sets how many
zaman go by in a minute.
Is my score saved?
No. Results show for each run and are not stored or sent anywhere.