Upright Bass: the Notes a Chart Never Prints

Twelve roots, 24 types, and the half of a chart that is deliberately left blank.

Pick a root and one of 24 types and see it as it lies on this reader's fingerboard, roots marked throughout. A number chart is a list of chords and bar counts; everything else that happens is somebody's decision, made in real time out of a map like this one.

The walk from one number to the next has further to travel on this instrument, so the notes it passes through are chosen for the distance as much as for the harmony.

That silence is a feature. A chart that specified the notes would take an hour to write and would stop being readable at a count-off, which is the only thing it was ever for.