Laborintus harp quartet

"Music is all relative as can be seen in harmonized words and songs. The sweeter the harmony, the more beautiful are the relations, for more is to be heard in them. Music draws the human spirits which are virtually the principle humours of the heart, nearly stilling their action: thus is the soul in its entirely hearing it, and the true virtue of all is attracted to that sensitive spirit, which receives the sound."

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from Laborintus II for voices, instruments and magnetic tape by Luciano Berio (text by Edoardo Sanguineti)