Abstract: In a method of and means for producing musical note relationships there is provided an array of staggered lines or rows or columns of symbols, in which each symbol represents a musical note. Each line may comprise a repeated series of twelve symbols forming a musical series of semitones known as a chromatic scale, and each line is staggered with respect to adjacent lines such that groups of the symbols which represent the same musical note relationship, such as intervals, scales, chords, etc., form the same visual configuration, for example diagonal configurations or vertical configurations at respective locations in the array. The array may comprise a keyboard including a plurality of keys each representative of a particular musical note.