KeyChord is a dynamic dictionary and reference app designed for piano chords and scales, making it an essential tool for musicians of all levels. With its intuitive virtual keyboard interface, users can easily look up and experiment with various chords and scales. The app stands out with its inclusion of an 88-key multitouch piano, offering a realistic playing experience directly on your mobile device.

Beyond basic chord and scale lookup, KeyChord provides advanced features such as reverse lookup functionality, staff view, and support for inversions and slashed chords. Whether you're a beginner learning the basics or a professional composer exploring complex musical structures, KeyChord adapts to your needs. Its ability to play back audio for any selected chord or scale adds another layer of practicality, while dark mode support ensures comfortable use in any environment.

The app's versatility makes it particularly valuable during practice sessions or live performances. Musicians can quickly reference complex chords, experiment with new scales, and even record their compositions as MIDI files. This functionality proves especially useful when composing music or setting custom ringtones, demonstrating KeyChord's value across various musical applications.

KeyChord distinguishes itself through its comprehensive feature set tailored specifically for musicians. The app includes over 50 chord types and 100 scale types, providing extensive coverage of musical possibilities. Users can explore different inversions, experiment with partial chords, and utilize the unique reverse lookup function to identify unknown chords or scales they encounter during practice or performance.

A standout feature is the integrated 7-octave scrollable multitouch minipiano, sourced from Mini Piano Pro, which offers 128 different sounds. This virtual instrument allows musicians to not only visualize but also audibly confirm their musical ideas. The app supports various information modes, including note names and component intervals, enhancing the learning experience. Additionally, the staff view helps users understand proper musical notation while practicing.

Practical features extend beyond just reference materials. KeyChord enables users to save favorite chord types, access recently used ones, and even record their compositions as MIDI files. The ability to set these recordings as ringtones adds a personal touch to mobile device customization. Furthermore, the app's dynamic nature means that rather than relying on pre-defined chord locations, it understands chord structures and allows placement anywhere on the virtual keyboard, offering unparalleled flexibility in musical exploration.