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.
Quaver for Macintosh requires OS X 10.9 or higher.
Quaver for iOS requires iOS 9.0 or higher and works on all devices.
Both versions of Quaver are available now for £0.99 / €1.09 / $0.99.
History
Current version: 1.5.3- Numerous minor improvements.
- Compatibility update for iOS 13.
- The minimum supported operating system is now iOS 9.
- Dark Mode is now supported on macOS 10.14 Mojave.
- The minimum supported operating system is now OS X 10.9 Mavericks.
- Quaver now includes a tool to convert time durations between samples and milliseconds.
- Other minor improvements.
New in version 1.4:
- You can now use a MIDI device to tap tempo (on iOS, enter his mode by holding down the "tap tempo button".
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.