Tonality: Music Theory is a comprehensive music theory reference tool that is perfect for musicians of all skill levels. This app lets you dive into a vast chord dictionary featuring over 1,000 chords for piano and guitar. You can easily explore various chords and scales while enjoying the benefits of MIDI functionality.

With Tonality, you can listen to chords by tapping on them or implement arpeggiation by swiping. The app also allows for chord identification, using a cutting-edge microphone feature that recognizes chords in real time. If you want to find a specific chord, you can use the reverse search feature, allowing you to search for chords by root, quality, or extension.

The app includes Guitar chord charts, which show you charts for any chord you choose. Tonality supports multiple instrument types and custom tunings. You can generate chord voicings by specifying criteria such as fret range, number of fingers used, and even finger stretch. There’s also a left-handed option for those who need it.

When it comes to scales, Tonality has a scale dictionary with over 1,000 scales. You can search for these scales by root and name and filter them with various tags. The app also offers ascending and descending scales for better visualization. You can view scale degrees and note names as well, making it easier to understand the music theory behind your playing.

An interactive circle of fifths adds another valuable feature. With this tool, you can view key signatures and scales for both major and minor keys, while focusing on diatonic chords in a selected key. This includes Roman numeral analysis, which helps you understand chord functions within the context of the key.

Tonality shines in ear training, allowing you to recognize notes, melodies, intervals, chords, and scales by ear. After each training session, you can examine what challenged you and create personalized levels based on those items. You can also view detailed training session statistics to track your progress over time.

For those learning new musical terms, the app features a musical terms dictionary. This section includes definitions and illustrations for various concepts, such as tempo, symbols, articulation, and dynamics.

Tonality also has a musical typing keyboard that allows you to type and preview chord symbols effortlessly. This special keyboard works wherever your iOS keyboard does, making it easy to use.

The app includes four AUv3 MIDI plugins for enhanced performance. You can view names of the piano chords and scales you play in real time and even record these identified chords to export them as text or MIDI files.

For performance, Tonality provides chord pads for easy access to your favorite chords. You can add chords from a list, scale chords, the fretboard, names, or even MIDI input. The drag-and-drop feature allows for effortless integration with other apps or plugin instances. You also have full control over voicings, allowing edits to octaves and velocities for individual notes. The strum bar feature lets you perform arpeggios or play individual notes easily.

In addition, Tonality features a grand staff display that shows MIDI input in real time and detects chord names. The enhanced interactive circle of fifths can control other apps, adjusting inversion, octave, extensions, and bass notes on the fly, while providing an auto-voice lead option.

Customization is another strong point of Tonality. You can create your own chords, scales, and fingerings. The app also allows you to set up ear training levels and definitions that suit your learning needs. You can view set theory information for any pitch class set, including Forte numbers and pitch constellations. For added personalization, you can select playback instruments and choose from different note naming options, such as English or Solfège.

Importing Scaler chord packs is simple, and the app lets you export pad sets as MIDI files when needed. You can even save and share custom presets across different hosts, making it easy to collaborate or share ideas within the community.

Overall, Tonality: Music Theory is a powerful tool for anyone looking to enhance their understanding and mastery of music theory. Whether you're a beginner or an experienced musician, this app supports your learning journey with its easy-to-use features and ongoing updates from the developer.