Polyrhythm test for headphones
The track plays rhythms at different speeds at the same time. The sound effects play simpler rhythms that you can count:
- Beats against beats plays a wood block slightly to the left and a bell slightly to the right: 3 hits against 4, then 4 against 5, then 5 against 7, five seconds each. Each cycle starts with a louder hit from both. Listen to the wood block on the left to follow one rhythm, and to the bell on the right to follow the other.
- Stacked layers starts with a wood block at 2 hits per second, then adds a bell at 3 and a hi-hat at 5 hits per second. When all three play, you should still hear the steady beat of the wood block.