Obligatory reference to King Gizzard and the Lizard Wizard's album "Flying Microtonal Banana"

https://en.m.wikipedia.org/wiki/Flying_Microtonal_Banana

Excerpt: "the album is recorded in quarter tone tuning, where an octave is divided into 24 (logarithmically) equal-distanced quarter tones; it was originally conceived to play on a baglama, so the band members used instruments specifically modified for microtonal tuning, as well as other Middle-Eastern instruments like the zurna."

Billabong Valley live at KEXP: https://youtu.be/bvtF2Ie90m0