Arranger Keyboard

Arranger Keyboard is a professional piano and arranger app that plays SoundFont (.sf2) and KMP (KORG) instruments, runs Yamaha STY styles with full accompaniment, and connects to USB or Bluetooth (BLE) MIDI keyboards. The app includes 256 built-in Yamaha styles and 127 voices covering General MIDI plus additional oriental tones, and it allows loading extra SF2 and KMP instrument banks and style files from your device for expanded sound options. You can record and mix performances, tune quarter-tones and maqams, apply reverb and EQ, and play or accompany MP3, WAV, AAC and MIDI files for practice, composition, and live use.

Key Features

Arranger Keyboard offers realistic instruments with dual-voice layering and a variety of voices including GM and oriental tones. It supports 256 Yamaha STY styles with the ability to load additional style files, and it can use SoundFont (.sf2) and KMP banks with SFF2 style compatibility. The app supports USB and Bluetooth MIDI keyboards, accepts microphone input, and plays MP3, WAV, AAC and MIDI files. Built-in effects and controls include reverb, an equalizer (Bass-Mid-Hi), mixer volumes, modulation effect and RGB theming, and the app provides scale and maqam tuning with save/load presets and Solfeggio frequency options for relaxation music.

Advantages

With Arranger Keyboard you get flexible accompaniment controls such as assignable Bass, Chord1/Chord2, Pad and Phrase parts, adjustable accompaniment volumes, new piano voices and multiple drum kits. Broad MIDI and audio support makes the app suitable for live performance and composition, and the Pro version adds multitrack MIDI recording and additional advanced tools for detailed arranging.

Disadvantages

Some advanced features, for example multitrack MIDI recording, are restricted to the Pro version. Also, additional Yamaha styles and external SoundFont/KMP banks must be sourced and loaded by the user rather than provided directly in the app.

Version Information

Recent updates add Major/Minor chord smart detection with octave adjustments, Solfeggio frequency options (174–963 Hz), a modulation effect, RGB theming, new drum kits (Modern, Standard, Oriental), a drum playing feature, expanded MIDI and song format support, SFF2 style compatibility, and multitrack MIDI recording available in the Pro version.