VERY interesting, Carlo! may I direct your attention towards my piece ("Ideogram - Audiogram") in Paideuma 20/1&2 (1991)? Cheers, alex _________________________________________________________________________ Alexander Schmitz - P.O. Box 122, D-21636 Horneburg, Germany Tel.: 0049-4163-7565, Fax: ...-7549; Mobile: 0177-5128767