AudioTheory Piano Keys is the ultimate interactive reference tool for learning or practising the piano. Each note you play is highlighted using an innovative colour coding system and a customisable selection of chord and scale diagrams, helping you visually understand the principals of music theory.

AudioTheory Piano Keys features

• An innovative highlighting system to quickly understand how the notes you're playing fit into chords and scales.
  
• Full MIDI input support. Connect your external MIDI input device to control the on-screen keyboard. Input is supported by real-time audio and visual highlighting with a selection of software instrument presets.
  
• Exclude notes and never play out of key again. Quickly load a scale from a full library of scale sets.
  
• Choose the chords for your composition from an extensive library. Or automatically display the chords relevant to the selected scale preset.
  
• Customise your view with keyboard sizes ranging from 37 keys to a full 88 key piano.
  
• Introducing the scale wheel. A brand-new invention for AudioTheory Piano Keys. The scale preset highlights on a circular diagram, giving a clear visual way to understand how a scale is structured relative to its root note.
  
• Ear Training exercises to help you understand and identify music by ear.

Plus a new invention that will change the way you visually understand music theory...

Real-time scale highlighting

This is a second row of keyboard notes that sits just above the main display and shows a scale for the note currently being played. This means you can see both the main song scale (loaded to the keyboard) and then the notes also filtered against the scale for the current root note. The perfect tool for improvising, this allows you to quickly identify suitable notes as you are playing.