 This early form of do-re-mi created a technical revolution in the speed at which chants could be learned, memorized, and recorded.Much of the European classical musical tradition, including opera and symphonic and chamber music can be traced back to these Italian medieval developments in musical notation, formal music education and construction techniques for musical instruments.Even as the northern chant traditions were displacing indigenous Italian chant, displaced musicians from the north contributed to a new thriving musical culture in 12th-century Italy.