Assertion: mantra's structure | /r/AtLocation | bach
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Source sentences:
text: Though this mantra recurs constantly, the structure of the composition is not a theme and variations as found in classical composers such as Beethoven and Bach, because the material is never varied, only expanded and contracted (both in duration and in pitch) to different degrees; not a single note is ever added, it is never "accompanied" or embellished (Stockhausen 1978, 155).