An Improviser's Guide to Practical Usage of the 026 Trichord
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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.