Byell Harmony is a practice-oriented tool for learning, listening to, and looking up chords, scales and musical contexts. Questions such as the following, can be answered easily: * Which notes on the guitar belong to the G Minor Blues Scale? * Where can I find notes on the violin, which can accompany the D-minor? * Which notes change when I change from C major to G major? * What can I play on the guitar when certain notes are given? * What is the name of the chord when you have the notes E, G and C * What scale is obtained if you replace the minor third with the major third in harmonic minor? * In the melody of a Song, you find e.g. the note A and D. To which chord might they belong? * How does the fingering on the violin move between G dorian and G phrygian? Which note on a cello corresponds * to which note on a guitar? * What scale is obtained if you use only the black keys on the piano? * How do I find a B° chord on the guitar? * What note must be played on a Eb tuned instrument to get the note C? and much more... Also you can interact with MIDI * Notes played on a Midi-Keyboard are shown on the display. * A connected footpedal (or a sequencer) can be used to change presets. * The current setting (root notes, scale, mode, marked notes) can be transferred via MIDI to another device with Byell Harmony. * Marked notes can be played to a connected MIDI device. * A song or chord progression can be defined and sent to all devices with Byell Harmony.