As the 1950s gave way to the swinging 60s some jazz musicians followed their classical music counterparts in trying to break down the most essential elements of what jazz — up to that point — had been. So they experimented with new forms, they abandoned the adherence to a key centre and harmonic sequence that were the cornerstones of pervious forms of jazz. They tried to break down the regular rhythmic patterns of jazz into more fluid movements, often by speeding up or slowing down the music. They experimented with new techniques, such as overblowing on the saxophone, and they incorporated elements of musical language from other cultures, such as African, Asian, Arabic and Indian music.