Graph Theory algorithm called Shortest Tour (variation of Traveling Salesman)

en.wikipedia.org/wiki/Travelling_salesman_problem

was applied to Black&White photo of Monalisa and then a simple synthesizer was applied to each step of the tour (travel). 1000 steps chosen from the tour and sonified accordingly.

Two melodies, 3 voices, in counterpoint, one Shortest Tour for white part of the photo, the other Shorter Tour for the black part of the photo.

Instrumentation in Logic PRO, Piano Motion for two voices (right, left), and Celtic Harp the third.

Remark: No special effects used for the low frequency spacy sounds, they are the original sampled instruments.

Production code: http://files.lossofgenerality.com/monaBW.pdf