Mono referes to the monoboard, a single bass guitar string and 2 pickups. All Pass refers to an all pass filter prcess used to design an impulse response which was developed by Elliot Canfield-Dafilou. The inline notes below reference different strategies for linking breath and changes of pitch. The tuning of the string is a translation of a yogic sun salutation or other series of yogic poses into partial turns of the tuning key controlling the string. There are 2 attempts at the same series, recorded in succession in order to explore acoustic beating. They were recorded between December 2021 and January 2022.
Some working notes. The basic Sun Salutation form.