He is a hungarian-born french painter who painted geometric abstractions and was a prominent influence on the Op art movement.
Microphones. As communities grew and gatherings became larger, the challenge was to create a device that would allow everyone to hear the performers.
Answer:
Middle ages music originally had no rhythmic structure, but as the music became more complex, a need for rhythmic unity emerged. With this complexity came rhythmic notation. In the early middle ages, music was monophonic, meaning a single voice or melody line. As time passed, polyphony developed (multiple melodies).
Polyphony is really interesting and led to the highly complex polyphony of the Renaissance, and eventually to the fugues of the Baroque period.
