Delay time·120 BPM · quarter note
120 BPM · quarter note
500
ms
Frequency 2 Hz

120 BPM quarter note — 500 ms

At 120 BPM a quarter note lasts 500 ms. One beat is 500 ms and a bar is 2000 ms.

Tempo
120 BPM
Note
quarter note
Length
500 ms
Frequency
2 Hz
One beat
500 ms
One bar
2000 ms
Per bar
4

Reverb and LFO use the same number

Set a reverb’s pre-delay and decay to these figures and the tail lands on the beat. LFOs are often dialled in hertz rather than milliseconds, so the table also gives 1,000 divided by the length — that is the rate to use for a tremolo or auto-pan locked to eighth notes.

Nearby cells

Same tempo, other notes

Same note, other tempos

Worth knowing

  • One beat is 60,000 divided by the tempo; every other note is a multiple of it.
  • A dot adds half the value back; a triplet is two thirds.
  • LFOs are often set in hertz rather than milliseconds, so that figure is here too.
  • The bar figures assume a 4/4 time signature.

Common questions

Q. How many milliseconds is a quarter note at 120 BPM?

500 ms. One beat is 500 ms, and this length is a multiple of it.

Q. What rate do I give an LFO?

2 Hz — that is 1,000 divided by 500, the rate for a tremolo or auto-pan locked to this note.

Q. How many fit in a bar?

4, because a bar runs 2000 ms in 4/4.

Q. What is one step shorter?

A dotted eighth, which tightens the pattern.