Fixed-location method of composing and peforming and a musical instrument

A method of generating a chord progression on an electronic instrument, comprising the steps of:

• designating an input controller on the instrument for the performance of musical data, where said musical data comprises note-identifying information, and where said musical data is provided in response to selections and deselections of said input controller;
• selecting a first song key corresponding to said input controller, said first song key defining said first song key's customary scale and customary scale equivalent;
• providing first musical data comprising first note-identifying information, said first note-identifying information identifying notes making up a first chord representing a relative position in said first song key's customary scale or customary scale equivalent;
• selecting a second song key corresponding to said input controller, said second song key defining said second song key's customary scale and customary scale equivalent;
• providing second musical data comprising second note-identifying information, said second note-identifying information identifying notes making up a second chord which represents the same relative position in said second song key's customary scale or customary scale equivalent as said first chord represented in said first song key's customary scale or customary scale equivalent;
• during at least one of said steps of selecting a first song key and providing first musical data or selecting a second song key and providing second musical data, providing at least one indicator corresponding to said input controller, said indicator representing a relative position corresponding to the selected song key for which it is provided, and to the corresponding chord of said selected song key;
• and
• in at least one of said steps of providing musical data, providing data representative of at least a chord or scale change.