The table below illustrates this, showing for each note in the basic octave the conventional name of the cents, and the difference in cents ( labeled ET-dif in the table ) between its size and the size of the corresponding one in the equally tempered scale.
32.
But the most outstanding participant in the project was Arseny Avraamov-composer, journalist, music theorist, inventor, one of the most adventurous people of his time, performance instigator, irreconcilable foe of the classical twelve tone system ( based on well-tempered scale ), promoter of the ultrachromatic Welttonsystem , developer of experimental musical instruments and tools, and author of the storied " Symphony of Factory Sirens ".
33.
Allen Forte in " The Structure of Atonal Music " redefines the term " hexachord " to mean what other theorists ( notably Howard Hanson in his " Harmonic Materials of Modern Music : Resources of the Tempered Scale " ) mean by the term " hexad ", a six-note pitch collection which is not necessarily a contiguous segment of a scale or a tone row.
