Recent Posts

Popular Posts



Posted by Dick Boak


Dick Boak of the Martin Archives here!

Because of my need to constantly transpose from key to key, I became obsessed with transposition wheels (like circular slide rules). This obsession took me through many evolutions until I gradually started adding chords and other features, finally completing “Dick Boak’s Musical Chord Wheel for the Guitarist” in 1979.This was a smashing failure because it required the user to cut out and assemble the three wheels as well as the many windows – a difficult task to say the least.

Many decades later while doing a seminar in Belgium, I met web programmer Davy Van Laere who created an ingenious online digital version of the wheel, no assembly required. I must say, it’s pretty cool! You can check it out here.

If you come across something that you think we would be interested in, please feel free to share it with us at:

Dick Boak

Director: Museum, Archives, Special Projects

Topics: The Archive Room

Keep up to dateSubscribe to our blog