Naquian music uses 7-tone scales rich in neutral thirds. Scales are abstractly viewed as subsets of a scale with 27 roughly equal steps per octave. The 3L 4s MOS scale (5 3 3 5 3 5 3) may be used, but they use other, non-MOS 7-note scales as well. The quasi-equal 6L 1s MOS scale (4 4 4 4 4 4 3) in 27edo is mainly used as a reference point rather than as an actual musical scale, in that notation is based on the 6L 1s scale in the same way that Western notation is based on the diatonic scale.
Movement by one step of 27edo is usually avoided, since it is considered difficult to sing.
Historically other micro-divisions have been used or proposed - especially 27-well temperaments, 17-well temperaments or 17-equal.