Peter Magadini "POLYRHYTHMS An Introduction" (for all musicians)
Why the open web links it
Explains and demonstrates polyrhythms and metric modulations for musicians.
Linked by 4 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including wikipedia.org, halleonard.com, petermagadini.com, ricksmusicalinstruments.com.
Cited in 1 Wikipedia article, including Polyrhythm.