>>19661000mu·sic
\ˈmyü-zik\
a : the science or art of ordering tones or sounds in succession, in combination, and in temporal relationships to produce a composition having unity and continuity
b : vocal, instrumental, or mechanical sounds having rhythm, melody, or harmony
The song he posted fits those qualities. Believe it or not, it probably took a lot of time to make, or at least a lot of time to become proficient with the software they used to create it.
If you could meet the qualifications in that definition by banging on wood and pissing on a bucket, it would in deed be music. People have made music similar to what you describe actually, using water instead of urine, of course.