Piano Companion

Piano Companion is a versatile practice and composition tool that brings a full piano keyboard, deep chord and scale libraries, and MIDI connectivity to your device. Use it to play and audition chords, build progressions, compose songs, or study theory — all in one app. Musicians will appreciate the convenience of a real keyboard interface plus the ability to create custom chord charts and export MIDI to a digital audio workstation. Whether you want to learn theory, sketch song ideas, or relax while playing, Piano Companion provides the reference and tools to support musical creativity.

Key Features

⭐ Over 1,500 piano chords including inversions up to the sixth and types such as major, minor, diminished, augmented, and sevenths.

⭐ More than 10,000 scales covering major, minor, chromatic, pentatonic, blues and many modal variations.

⭐ Chord progression builder and sequencer to assemble and audition progressions quickly.

⭐ Interactive Circle of Fifths (Chord Wheel) for visual chord relationships and easy key navigation.

⭐ Ability to create and organize your own chord libraries and printable chord charts.

⭐ MIDI support including external MIDI keyboard compatibility (reverse mode) and MIDI output for iOS to link with a DAW.

Advantages

✅ Large, well-organized chord and scale libraries make learning and experimenting fast and efficient.

✅ Piano Companion’s real keyboard and audio controls let you play and fine-tune sounds for composing or practice.

✅ Flexible chart and library creation helps you save original ideas and prepare arrangements for performance or study.

✅ Interactive theory tools like the chord wheel and labeled notation support learning across multiple languages.

✅ MIDI integration enables connecting to external keyboards and routing output to recording software for professional workflows.

Disadvantages

❎ Advanced features and the sheer number of chords and scales can be overwhelming for absolute beginners.

❎ Some MIDI functionality is platform-specific (MIDI output is noted for iOS), which may limit workflows on other devices.