BEAT ORBIT

stereo polymeter · rhythmic synchronicity

Best heard with headphones — left rhythm → left ear, right rhythm → right ear.
L
LEFT EAR
pan −1 · outer ring
4/4
TONE
123412345678910111213SYNC IN22.29SECONDSL 1/13 · R 1/7
♩ BPM
0.00s
ELAPSED
22.29s
TO SYNC
R
RIGHT EAR
pan +1 · inner ring
13/7
TONE

TIMELINE

◀ L · 13 bars of 4/4R · 7 bars of 13/7 ▶┃ sync beam┆ beat unison
123456789101112131123456710s5s10s15s20s
CYCLE
0%
PRESETS

WHEN WILL THEY MEET?

13 × 4/4=7 × 13/7=22.286s

At 140 quarter notes per minute, the left ear plays 13 bars while the right ear plays 7 bars. After exactly 22.286 seconds (52 quarter notes) both land on beat ONE together — then the whole orbit repeats.

13
LEFT BARS
7
RIGHT BARS
22.286s
SHARED TIME
52
QUARTER NOTES
0
SYNCS SO FAR
#1
CURRENT CYCLE
SHOW THE EXACT MATH
common grid D = lcm(4, 7) = 28 ticks per whole noteleft bar = 4 × 7 = 28 ticks · 1.714286sright bar = 13 × 4 = 52 ticks · 3.183673scycle = lcm(28, 52) = 364 ticksbeat unison (any beats align) every 1.714s — not a full sync