Date: Thu, 25 May 1995 20:43:24 -0500 (CDT) From: JJTHAD~ife.uams.edu Subject: Blocking on chromatic.
First time I hear about the U-blocking, was in reference to a chromatic player who's name became associated with this technique -- Leo Diamond. Don't know much about him, but I have it from Chrom tech James McKenzie that the U-block required different tuning since it tended to play the notes flatter.
Certainly the Chicago-style chrom players often do side-hole tongueblocking.