| Name | GREEK VOCAL NOTATION SYMBOL-21 |
| Unicode Version | 4.1 |
| Block（ブロック） | Ancient Greek Musical Notation（古代ギリシア音符記号） |
| Plane（面） | Supplementary Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | 𝈔 𝈔 |
| UTF-8 Encoding | 𝈔 f09d8894 |
| UTF-16 Encoding | 𝈔 d834de14 |
| UTF-32 Encoding | 𝈔 0001d214 |