Arranger Keyboard

Arranger Keyboard: A Mobile Music Production Studio

The Arranger Keyboard app transforms your mobile device into a versatile music production workstation. This application is designed for musicians who want to compose, practice, and perform with the features of a professional arranger keyboard. Users will want the Arranger Keyboard for its powerful combination of auto-accompaniment, multi-track recording, and extensive sound libraries, all accessible from a smartphone or tablet. It provides a complete mobile studio for creating full musical arrangements on the go.

Yamaha Style Auto-Accompaniment

Users begin by selecting a musical style from the integrated library, which mirrors the rhythms and patterns found in hardware Yamaha keyboards. Once a style is chosen, the user plays a chord with their left hand to trigger the auto-accompaniment. The Arranger Keyboard then responds with a full backing band—including drums, bass, and harmonic instruments—that dynamically follows the user’s chord changes. This allows for instant composition of complete songs, making it an invaluable tool for practice and live performance.

Multi-Track Song Recording and Mixing

This function allows users to build a song layer by layer. A musician starts by recording the auto-accompaniment as one track. They can then arm a new track, select a different instrument sound from the Arranger Keyboard’s library, and record a melody or solo over the top. This process repeats for each new part. Finally, users can adjust the volume levels and panning for each individual track within the Arranger Keyboard’s mixer to create a balanced, professional-sounding final mixdown.

Real-Time Chord Recognition and Input

The Arranger Keyboard app analyzes the notes played in the lower section of the keyboard in real time to identify chords. Users simply play a chord shape with their left hand, and the software instantly displays the chord name (e.g., Cmaj7, Gmin) on the screen. This feature provides immediate feedback for musicians learning harmony. It also ensures the auto-accompaniment engines within the Arranger Keyboard receive the correct harmonic information, guaranteeing that the generated rhythms always match the user’s playing.

Integrated Digital Audio Workstation (DAW) Controls

The app functions as a streamlined DAW, providing essential transport controls for music production. Users press the record button to capture their performance, which can include both the auto-accompaniment and any live playing. They can then stop, rewind, and play back the recording to review their work. The Arranger Keyboard allows for recording multiple takes into separate tracks, facilitating a non-linear workflow where different instrument parts can be edited and refined independently after the initial performance.

Expanded Sound Library with SF2 Support

Beyond its built-in instruments, the Arranger Keyboard supports importing SoundFont (SF2) files. Users first acquire SF2 files from external sources and place them in their device's storage. Within the app, they navigate to the sound manager, locate the file, and load it. This instantly adds new, high-quality instrument voices—from realistic pianos to synthetic pads—to the Arranger Keyboard’s palette. This expandability allows users to customize their sonic toolkit far beyond the default sounds.

Scale and Tuning Customization for World Music

For composers interested in ethnic and microtonal music, the Arranger Keyboard offers advanced tuning options. Users access the settings menu to select from a list of historical and world scales, such as Maqam or a quarter-tone scale. Once applied, the keyboard’s layout is adjusted so that certain keys will produce intervals smaller than a semitone. This feature allows the Arranger Keyboard to authentically reproduce the melodic nuances and unique tonalities required for specific genres of world music.