Scale Tuner - US app for iPhone and iPad

Scale Tuner is a Core MIDI application which allows you to change the tuning of a compatible Yamaha keyboard or digital piano to Arabic or pure temperament tuning.

FEATURES:
- 11 Preset scales: equal, pure (major and minor), plus 8 typical Arabic scales.
- Scale Edit: Individual key tuning. Save settings to 5 memory locations.
- Internal Piano Voice: For scale settings confirmation without the need of a connected MIDI keyboard.

COMPATIBLE YAMAHA INSTRUMENTS:
- Clavinova: CVP-500/600 series, CGP-1000
- Digital Piano: DGX-650
- Arranger Workstation: PSR-S650/S710/S750/S910/S950/A2000, Tyros4/5
- Portable Keyboard: PSR-E243/E343/E433/E443/I455, YPT-240/340

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