Quaver is a utility to assist composers and recording engineers with some maths and musical theory. It features a number of tabs, each dedicated to a particular task. The first deals with tempo, and calculates the delay times and oscilator frequencies that match a particular tempo. This tab also features a metronome. The second tab calculates the relationship between MIDI notes, their fundamental frequencies and their names. The third tab assists you in identifying the notes of a given scale (or mode) and working out how to draw the corresponding key signature. A fourth tab is for converting durations between samples and milliseconds.

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Available on the Mac App Store Available on the App Store Quaver for Macintosh requires OS X 10.13 or higher.
Quaver for iOS requires iOS 12 or higher and works on all devices.
Both versions of Quaver are available now for £0.89 / €0.99 / $0.99.


Current version: 1.6 New in version: 1.5.4 (iOS only) New in version: 1.5.3 (iOS only): New in version 1.5.2 (iOS only): New in version 1.5.1 (Mac only): New in version 1.5:
New in version 1.4:

New in version 1.3.1:
  • This version fixes a bug which sometimes caused the on-screen keyboard to fail to initialise correctly.

New in version 1.3:
  • Quaver now has a built-in synthesiser so you can hear the notes you select in the pitch tab or listen to scales in the scales tab.
  • You can now make note selections in the pitch tab using MIDI instruments.
  • Other minor enhancements including support for new screen sizes.

New in version 1.2.1:
  • Fixes a bug in the handling of negative octaves in the pitch tab.

New in version 1.2:
  • This version adds a metronome to the tempo tab.

New in version 1.1:
  • Define middle C as C3, C4 or C5. Midi note values are defined relative to middle C.

New in version 1.0:
  • Initial release.
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