AudioTheory – Revolutionary music theory software

Revolutionary music theory software

AudioTheory Guitars main interface with keyboard, chord and fretboard diagrams

AudioTheory Guitars is the ultimate reference tool for guitar notes and chords. Featuring a built-in keyboard, each note reacts to your input across customisable chord and fretboard diagrams. For anyone who's ever wished music theory was that little bit more visual – this is the software you need.

Updates & News

AudioTheory Piano Keys Version 3.0.0 Update

A major feature update for AudioTheory Piano Keys.

Updates Roundup – AudioTheory in 2025

A look back over a year of improvements.

AudioTheory Piano Keys Version 2.0.0 Update

A giant leap forward for AudioTheory Piano Keys.

AudioTheory Guitars Version 3.0.0 Update

The biggest update yet for AudioTheory Guitars.

AudioTheory Guitars – Now Available on iPad

AudioTheory Guitars releases on the iOS App Store for iPad.

AudioTheory Piano Keys 1.4.0 – 88 Key Update

Support for multiple keyboard sizes up to a full 88 key piano.

AudioTheory ASIO and Performance Updates

A series of updates bringing improvements to the full range of AudioTheory software.

AudioTheory Guitars Version 2.0.0 Update

A big update and new look for AudioTheory Guitars.

AudioTheory Piano Keys: Available Now

AudioTheory Piano Keys releases on Steam, Mac App Store and direct today.

AudioTheory Piano Keys – Ear Training

New ear training exercises for AudioTheory Piano Keys.

AudioTheory Guitars 1.18.0 – 24 Fret View + Improved Chord Selector Update

A new fretboard view mode and an improved selector for open chords.

AudioTheory Piano Keys Release Announcement

Arriving 24th September 2021.

AudioTheory Guitars 1.17.0 – Chord Reordering Update

New click and drag tools for reordering chords.

AudioTheory Guitars 1.16.0 – Improved MIDI Support + Extended Configuration Update

Improved customisation with a new settings popup.

Coming Soon: AudioTheory Piano Keys

Introducing scale highlighting, the scale wheel and exciting new features.

AudioTheory Guitars 1.15.0 – Auto Load Chords With Scale Update

Auto load a set of chords with each scale preset.

AudioTheory Guitars 1.14.0 – Extended Chord Selector Update

New features to support a larger library of chords.

AudioTheory Guitars 1.13.0 – Relative Highlighting Update

Relative sharp and flat highlighting for the fretboard and chords.

AudioTheory Grids: Available Now

AudioTheory Grids releases on Steam, Mac App Store and direct today.

AudioTheory Guitars 1.12.0 – Scale Based Highlighting Update

The colour coding system is extended to the black keys with scale based highlighting.

AudioTheory Guitars 1.11.0 – Diminished 7 Chords Update

Dim7 chords with a new selector have been added to the application.

AudioTheory Guitars 1.10.0 – Modal Scales Update

Modal scales, or 'modes' are now part of the fullscreen scale presets.

AudioTheory Guitars 1.9.0 – Custom Tuning and Fullscreen Fretboard Update

A new view mode with a larger fretboard and options to fully configure the guitar tuning.

AudioTheory Guitars 1.8.0 – Shifted Tunings Update

Fretboard and chord diagrams for shifted tunings, with an option to lower the 6th string.

AudioTheory Guitars 1.7.0 – Exact Chord Playback + Scale Playback Update

Specific chord note highlighting and audio preview scales.

AudioTheory Guitars 1.6.0 – Save and Load Presets Update

Quickly swap layouts by saving and loading your configuration.

AudioTheory Guitars 1.5.0 – Drop D Tuning + Octave Specific Playback Update

Octave-specific note highlighting and support for Drop D (plus Drop Db) tuning.

AudioTheory Guitars 1.4.0 – Fullscreen Scale Selector Update

Presets for the pentatonic and blues scales plus a fullscreen selector.

AudioTheory Guitars 1.3.0 – Power and Barre Chord Update

Barre and power chords are now part of the available chord selection.

AudioTheory Guitars 1.2.0 – Fullscreen Chord Selector Update

View all available chords (with diagrams) from a single screen.

AudioTheory Guitars 1.1.0 – Chord & Note Playback Update

Extended note playback functionality and a play button next to each chord.

More about AudioTheory Guitars

Adjustable Fretboard

Note Highlighting

Customisable Scales

Seamlessly transcribe between piano and guitar using a straight-forward colour coding system and notation highlighting. Play a note on the keyboard, or directly from the chord and fretboard diagrams to see where it is across all formats.
Set your tuning and capo. Everything else adjusts accordingly – no need for a chord transposition chart.
Choose your chords with open, power, barre, sus2 and dim7 chord sheets with fullscreen diagrams and playback options.
Exclude notes and never play out of key again. Your fretboard diagram now only shows the notes you need and your keyboard doesn't play the ones you don't.
Scale presets you can quickly apply to the application. Save and load functions to easily swap between customised views. Auto load chords to match the selected scale.
Midi support. Connect an external Midi input device to control the on-screen keyboard.
Full customisation. Select the chords you want. Left-handed mode for left-handed players. Set your fretboard size, number of strings, start fret and per-string tuning.

AudioTheory Guitars is available for $6.99. This includes all features and future updates.
It can be downloaded directly, through Steam, or the Mac App Store.

Steam

Mac App Store Purchase Direct