Answer:
Improvisation is when an actor acts without a script and comes up with lines/actions on the spot.
1) Henry Cowell played his signature tone clusters on D) the piano. He came up with his <span>innovations in the piano pieces, when he developed </span>“tone clusters”. Such an achievement came to his mind somewhere between<span> 1912 and 1930 when Cowell was looking for new sonorities.
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2) Western composers were heavily influenced by non-western music during the late twentieth century because of C) a sense of anti-nationalism. Every talented person wants to erase boundaries of common knowledge and find a source of other culture so that they could combine all their experience into something new.
3) <span>Edgard Varese defined music as B) organized sound. Varese brought a concept of a perfect sound in simple words "what is music but organized noises?". When listening to his music, it's clear that it is meant to emphasizes timbre and rhythm. He gave to a musical structure, which he considered as perfect, the name - "organized sound".
4) </span><span>Many Indians talas, or rhythm cycles, use additive meter, which means C) measures increase in size as the piece progresses. There are two musical terms that can be helpful while distinguishing two types of both rhythm and meter- additive and divisive rhythms. In contrast to additive, divisive rhythm is a rhythm in which a larger period of time is divided into smaller rhythmic units.
5) </span>Systematic, or minimalist, music is generally C) tonal. In music, tonality<span> is when </span>pitches<span> and/or </span>chords are arranged in a hierarchy (it is systematic). The main characteristics of minimalism in music are the presence of <span>a steady pulse, clear tonality, and insistent repetition of short melodic patterns.</span>
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