Leimma & Apotome (play with them!): https://www.isartum.net/

Microtonality and the Struggle for Fretlessness in the Digital Age: https://www.ctm-festival.de/magazine/microtonality-and-the-struggle-for-fretlessness-in-the-digital-age 

Microtonal Playlist: https://www.mixcloud.com/KhyamAllami/microtonality-and-the-struggle-for-fretlessness-in-the-digital-age-ctm-magazine-article-playlist/ 

Apotome Artist Takeovers at CTM: https://www.ctm-festival.de/festival-2021/programme/schedule/event/apotome-artist-takeovers-873 

Counterpoint: https://ctpt.co/