Download the free demo in key C | no ads | Subscription € 1.- ($1) per year for full access (in-app-purchase)

  • Complete library of CHORDS, ARPEGGIOS and SCALES
  • Displayed in all useful VOICINGS for guitar and piano
  • Pop, Jazz, Latin, Rock, World-, Classical music
  • Variable playback function
  • In all keys
  • 59 chords and arpeggios
    Major, Minor, Dominant 7, Major 7, Sus 2, Sus 4, Diminished, Augmented, Minor 7, Minor 6, 7/9/#11/b13, Power Chords, etc. …
  • In all guitar positions
  • Narrow and wide piano fingerings (voicings)
  • Up to 15 voicings per chord and key
  • Color-code tones by function or interval (root / third / fifth / seventh / tension)
  • Select guitar-to-piano (or vice-versa)


  • 66 scales of modern music and jazz
    major, minor, pentatonic scales, modern modes, melodic minor modes, harmonic minor modes, harmonic major modes, jazz, blues, bebop, …)
  • 61 scales of world music
    Arabic, Chinese, Japanese, Jewish, Indian, Roman, …
  • In all guitar positions
  • Select guitar-to-piano (or vice-versa)


  • Determine chords and scales after entering at least 2 notes on either the guitar or piano
  • Display multiple results
  • Identification of excerpts from chords and scales
  • Useful and informative ranking of bass tone, number of tones, and complexity
  • Direct transfer of the analysis results to normal display mode


  • Left-handed guitar
  • Change between # and b keys
  • Display of enharmonic equivalents
  • Classical notation in the treble clef
  • 8 basic chords and 6 standard scales for beginners
  • Systematic display of chords and scales in a matrix
  • Intervals at a glance
  • Comparison of harmonic structure 
  • Adjustable Player for both ear and vocal training

Last but not least, you can also jam on the app itself on either guitar or piano! 🙂