For six percussionists and magnetic tape.
Comission: CERM (Centre Européen pour la Recherche Musicale) Metz
First performance: recontres internationales de musique contemporain 1980, Metz;
Recording: Slagwerkgroep Den Haag, Donaueschingen 1984

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

de "Intensidad y Altura de César Vallejo

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 correspondsv 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.