| 15/1979: "Intensidad y Altura", for 6 Percussionists and Tape |
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for 6 Percussionists and Tape
The starting point for this piece is the simultaneous division of a given time unit in four, five, six and seven equal segments, that is, the proportion 4 :5 :6: 7.
If we divide this frequency by 4,5,6 and 7 we obtain the "basic chord", 247, 197.6, 164.6 and 141.1 Hz.:
The "basic-rhythm" would be:
If we transpose this rhythm ten octaves lower, we obtain the "basic formal division":
In this composition the proportion 4:5:6:7 is present in 21 octaves, the highest being the basic frequency, the lowest the formal division. Mesias Maiguashca Ed. Salabert |
