Intensidad y Altura (1979),

For six percussionists and magnetic tape
Commission: CERM (Centre Européen pour la recherche musicale) Metz
First performance: recontre interenationales de musique contemporaine 1980, Metz
Recording: Slagwerkgroep Den Haag, Donaueschingen1984

"Quiero escribir pero me sale espuma,
quiero decir muchísimo y me atollo..."

de "Intensidad y Altura de César Vallejo

(Keine Übersetzung verfügbar)

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.

The "basic frequency" of this piece is 988 Hz,

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.:

If we transpose the basic frequency 988 Hz. 10 octaves downwards we obtain the frequency 0.964 Hz., which correspond to the metronomic value of quarter=58;

If we divide this duration by 4, 5, 6, and 7 we obtain the basic rhythm;

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 20 octaves, the highest being the basic frequency, the lowest the formal division.