The intelligent creatures could manipulate for their own ends elements wrenched from the fixed tonal environment, thus constructing artefacts of tonal pattern.

However, a central auditory impairment remained, affecting the right ear score on Binaural Fusion and left ear scores on dichotic tasks and tonal pattern sequences.

A creature's body was a more or less constant tonal pattern, with much the same degree of flexibility and minor changefulness as a human body.