It’s time to turn your doodles into tunes. In Trunetrace, an iOS app, designer Ed Burton turns photographs of drawings into music. The software finds edges of the lines in the photograph, and reduces them to polylines which are then translated into paths for different tones. Essentially, the drawing is interpreted as a computer program that makes music. To change the tune, change the drawing.

Depending on the arrangement of the lines in the drawing, some tunes are quite short while others will appear to loop on forever. Burton made Tunetrace “interpret the lines of a drawing as lines of code so that anyone who can doodle can feel some of the mystery and surprise of programming” turning something as simple as a pen and paper into an extraordinary instrument.

The app is available iPhone and iPad and can be download for free on iTunes.