# Alterations in 36-EDO

The following table shows the alterations in the 36-tone equal-temperament system (36-EDO, sixth-tone system) up to the seven sixth-tone.

- go – Gould notation
- 5 × 2 combined arrow symbols after Gould (U+E270 - U+E279) for sixth-tones, und standard sharp / flat symbols (U+E260 - U+E264).
- arrow – Arrow notation
- Half arrow (hook) after Ezra Sims (U+E2A4, U+E2A1) for sixth-tones, and standard sharp / flat symbols (U+E260 - U+E264). All symbols are placed either alone or a standard symbol is combined with a half arrow.
- sag – Sagittal notation
- 6 × 2 Spartan Sagittal single-shaft and multi-shaft symbols after George D. Secor and David C. Keenan (U+E304 ... U+E335). This is the "Pure Sagittal notation" in contrast to msag. It uses one distinct symbol for each degree up to the whole tone. For the seven-sixth-tone degree, two symbols are combined.
- msag – Mixed Sagittal notation
- 1 × 2 Spartan Sagittal single-shaft symbols (U+E304, U+E305) for sixth-tones, standard sharp / flat symbols (U+E260 - U+E262, U+E264), and large double-sharp symbol (U+E47D). They are placed like arrow.
- wys – Wyschnegradsky notation
- 5 × 2 symbols after Ivan Wyschnegradsky (U+E421 ... U+E434), and standard double-sharp / flat symbols (U+E263, U+E264). The notation uses one distinct symbol for each degree up to the whole tone. For the seven-sixth-tone degree, two symbols are combined.
- bos – Bosanquet commatic notation
- Two comma symbols (sloping lines) after Robert H. M. Bosanquet (U+E479, U+E47A) for sixth-tones, and standard sharp / flat symbols (U+E260 - U+E264). They are placed like arrow.
- haba – Hába Notation
- 5 + 3 symbols after Alois Hába (U+F661 ... U+F670),
and standard double-sharp / flat symbols (U+E263, U+E264).
The notation uses one distinct symbol for each degree ascending
up to the whole tone and descending up to the semitone. For the other
degrees up to the seven-sixth-tone, two symbols are combined.

Note: Hába's symbols are defined as “Optional glyphs” in the Ekmelos Font since they are not included in SMuFL.