The invention provides methods and apparatuses for creating a two-dimensional graphical representation of music which has been analysed into a chord sequence, by evaluating a first parameter of each chord, e.g. the harmonic root, determining a first display coordinate for each chord in dependence on the evaluated first parameter, determining a second display coordinate for each chord within the sequence in dependence on the time of occurrence of each chord within the sequence, and displaying the chords graphically at positions defined by the determined.