A Fractal Audible Interface

[mklotz]

You've invented the repeater charge gauge, the modern stepchild of the repeater pocket watch of old. Repeater watches worked in various ways but a typical model worked like this...

The minute repeater is a complication wherein the wearer activates a lever to chime the time. The minute repeater chimes the hours, quarter hours, and minutes using three different tones. Usually the hours are sounded using a single hammer and gong in a low tone. The quarter hours are signaled by two tones (a high and low sound) using two hammers, and the minutes (past the quarter hour) are sounded using a single high tone. For instance, at 8:36, the watch will chime eight low notes for the hour, two double-tone notes for the quarter hours, and six high notes for the minutes.

If you plan to market this idea (I'm guessing you're not) take heed of the fact that the average American cannot tell you the sum of 1/2 and 1/4 and isn't even aware that fractions can be multiplied just like "real" numbers.