Three concisely plain compositions for guitar, two solo and one trio, are played only with open strings or natural harmonics, where all the tunings are respectively irregular, written by Tokyo-based guitarist and composer Taku Sugimoto and performed and recorded in St. Petersburg, Russia by guitarists Andrey Popovsky, Denis Sorokin and Alexander Markvart.

A live concert at Dom Cultural Center in Moscow, Russia in 2015 from Norwegian tuba player Martin Taxt, Saint Petersburg violinist and object player Andrey Popovskiy, and ppool performer Kurt Liedwart focusing on sinewaves and noise, in an extended lowercase improvisation exploring harmonic and microtonal sounds.

...