Program note 

This piece is a sound texture that evolves continuously passing through five states: bones, crust, wind, hair and mud. The duration of the piece is indeterminate: a short version can range from 3 to 5 minutes, and a long version from 10 to 20 minutes. 

The score is an analog graphic that represents in a general way the structure, texture and movement. It does not detail the sound parameters that the voice must perform - it is simply a structural guide to be followed intuitively. An instruction note describes textually the indications to be performed with the voice to get the nature of the material in each section.