Universal Guitar Chord Learning System and Method

A method of learning guitar chords using a universal chord card system, the method comprising:

• providing a plurality of chord cards, each chord card having:
• a thin, flat body adapted to fit between guitar strings and a fretboard without interfering with vibration of the strings;
• a configuration of fret engaging notches along peripheral edges of the body, the configuration of fret engaging notches arranged to allow the chord card to securely attach to frets of various guitar models having different fret spacings and dimensions;
• and
• chord identifying information and finger placement markers printed on the body;
• selecting, from the plurality of chord cards, a chord card corresponding to a guitar chord to be learned;
• inserting the selected chord card between the strings and the fretboard of a guitar such that the fret engaging notches mate with corresponding frets to fix the chord card in position;
• placing fingers on the strings at positions indicated by the finger placement markers on the chord card;
• strumming the strings while the chord card is in position to produce an audible guitar chord sound;
• and
• listening to the audible guitar chord sound produced to aurally learn the guitar chord;
• wherein the chord cards are universally compatible with multiple different guitar models to enable learning of guitar chords on various guitars using the same chord card system.