An Improviser's Guide to Practical Usage of the 026 Trichord
Presently growing within the collective consciousness of many contemporary improvisers (guitarist Bruce Arnold and saxophonist John O'Gallagher lead the way), is the awareness and usage of the 12-tone techniques pioneered by the early 20th century European “serialist” composers – Berg, Webern & Schoenberg - being the most prominent among them.
The basic premise of this system is the construction of 12-tone rows – the 12 tones of the chromatic scale as equal entities, non-repeating and organized into different “pitch class sets”, or note groupings of varying lengths.