Quaver is a musical calculator and look-up tool for recording engineers and composers. It can calculate the delay times and oscillator frequencies that match a given tempo to help keep things in sync. Its pitch tool can tell you the fundamental frequency of any note in the MIDI range - or perform the reverse calculation. Finally, the scale tool can tell you the notes that make up a given scale and draw the key signature.

What’s New

Version 1.5.1

Support for Dark Mode on macOS 10.14 Mojave

Ratings and Reviews

5.0 out of 5
1 Rating

1 Rating

Timo Zai ,

Handy Little Music Utility App!

Quaver is an extremely useful music utility app. It’s great for keeping the pulse of a track (instrument or effect) in sync with the BPM of a song. I mostly use it to figure out delay times, and it can also be used to calculate oscialltor freqs. The scale tool is a bonus — lists the notes withing a chosen scale. It’s been years since my college music theory classes. The only key I have memoried is the key of C. ;-) All in all, Quaver is a fantastic bargain! I’ve gotten my money’s worth out of this fine little app a dozen times over.

*Cost less than my guitar pick


Ross Flint
776.8 KB

OS X 10.9 or later, 64-bit processor



Age Rating
Rated 4+
© 2014-2018 Ross Flint


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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