Ahnen

Ahnen is a system of symbols used as an extension of the ehnen alphabet among some people on the Haman peninsula. It is used exclusively as a sort of musical scale notation and do not have alphabetical functions at all.

The ehnen alphabet consists of three symbol classes, called hi, mem and aeo, considered the wind, earth and fluid of speech respectively. Some druids within Haman considers the ahnen an additional symbol class that is the iron or scent of speech, depending on who you ask. Ahnen is not as established as the ehnen system and its nature is still highly debated among scholars.

Ahnen is a system of musical scales. It's not the same as our musical notation, neither is it the same as chords, but the system has to do with ideas of harmony. Ahnen symbols supplant song lyrics with modular scales to improvise over. Ahnen notation uses, like ehnen, three symbol classes, myma, syma and poem (poem is called third syma in some areas and ornamented as such). Each ahnen correlate with a mode of a base pentatonic scale. Myma and syma each have two base tones, first and last, while poem only has one base tone. Whether a first or last myma or syma is played depends on the symbol's ornamentation, while poem is one symbol only. Additionally, beside the base tones, all of the scales have a modulation, broad and short, which is denoted by either a line or a dot. The modulation describes whether certain parts of the scale are flat or not.

Conversion to Western music scales
As has been said, ahnen are structured around a pentatonic scale system, and its individual symbols (and their base tones) correlate with this scale. In addition, the modulations describe whether certain parts of the scale are flat or not.

But it's all really hard to articulate for me, especially in English, so I'll just write down what the different scales look like as Western notes (here based around C as a prime, it should just be considered a 1st on a base scale for understanding):

Broad first myma: C D Eb F G A Bb.

Short first myma: C D E F G A B.

Broad last myma: D Eb F G A Bb C.

Short last myma: D E F G A B C.

Broad first syma: F G A Bb C D Eb.

Short first syma: F G A B C D E.

Broad last syma: G A Bb C D Eb F.

Short last syma: G A B C D E F.

Broad poem/third syma: A Bb C D Eb F G.

Short poem/third syma: A B C D E F G.

The scales are notated by their symbols above or below the lyrics of a piece, similar to how guitar chords are written above or below in OTL online chord notation. But the scales aren't played as chords, rather they are improvisational