The following table shows the alterations in the 12-tone equal-temperament system (12-EDO, traditional western tone system) with 2 degrees.
- std – Standard Notation
- Standard sharp / flat symbols (U+E260 - U+E264).
- sag – Sagittal Notation
- 2 × 2 Spartan Sagittal multi-shaft symbols after George D. Secor and David C. Keenan (U+E318 ... U+E335).
- msag – Mixed Sagittal Notation
- Standard sharp / flat symbols (U+E260 - U+E262, U+E264), and large double-sharp symbol (U+E47D). This is a variant of std and actually not a Sagittal notation.