f(t)9 / 35Banjo hoedown
x mod 7
Count to 7, then start again. Clock arithmetic with a 7-hour clock.
The equation
y = x mod 7
What the equation decides
A 7-note banjo roll runs over a 16-step bar, so its bright top note walks across the beat, bar after bar. In the break the roll shrinks to 5 and the accents crowd together.
What was composed
Fiddle hook, chords, verse line, upright bass and stomp.