23edl

23EDL (equal divisions of string length) is the scale constructed by dividing a string on a stringed instrument into 23 equal parts by length. It is a utonal scale.

It does not contain a perfect fourth or perfect fifth directly above its root, giving it an ungrounded 'floating' feeling similar to the 12edo whole tone scale (6edo), but with a similar step size to the chromatic scale of 12edo, and with very xenharmonic new harmonies available. Composers who find 11edo and 13edo appealing are likely to enjoy 11ifdo for similar reasons.

Music

• Gracias a Dios - acoustic guitar EP by Noah Dean Jordan (2023)
• Old Pine - acoustic guitar album by Noah Dean Jordan (2025)

Todo: expand