AEU is the name of Arel-Ezgi-Uzdilek who are the musicologists. The AEU divides an octave into 24 unequal ranges. Since a full voice is calculated as 9 coma, it is thought that there are 53 pitch in the octave.
Turkish Folk Music pitch system is used as revealed by Farabi and has a 17-piece pitch system. -- Sent from: http://lilypond.1069038.n5.nabble.com/User-f3.html
