The trumpet and flugelhorn have a lineage in the world of transmission and signals. A blast of sound across a valley could signal war or the hunt or even just dinner. They were an extension of the human voice across great distances.
The electronic part of Kajato was made with this lineage in mind, using a technology called Linear Predictive Coding (LPC), originally built to model the human vocal tract for the synthesis and transmission of human speech. Here, LPC is used to cross-synthesized the trumpet with the human voice (a boy soprano), altering its spectrum to produce shadings of vowel sounds, smooth glissandi, and swells.
The piece was originally composed for trumpeter Jason Price and uses his original email handle as its title. The electronic sounds were developed in close collaboration with Jason and nearly all of the sounds in the electronic part are derived from his horn.
Listen to Kajato:
Kajato is also available in a version for horn and electronics developed with hornist Adam Unsworth.
A score of the version for trumpet and electronics is available upon request.