Guitar Resurrection
My friend Mike gave me this guitar he built (from new parts, not used scrap!). So I decided it was time to re-learn the basics of playing the instrument...
My friend Mike gave me this guitar he built (from new parts, not used scrap!). So I decided it was time to re-learn the basics of playing the instrument...
Long ago I wrote a really clunky analog clock app. Yesterday I finally fixed it up...
The HP48G Series - Venerable, classic, still relevant.
After studying John Coltrane's wholetone/chromatic circular diagram, I was determined to make a program to show musical intervals around a circle. And if I could, to make a concentric "inner" ring with note offsets, like Coltrane did. So the weekend arrived and I got busy...

Like many music theory minded people, who also are into jazz, I have seen and wondered about John Coltrane's curious circle drawing...