Clefs & Musical Staff Guide
Understand how pitch relates to the 5 lines, spaces, and piano keys.
Treble Clef
Khóa Sol (G Clef)The Treble Clef (G Clef) curls around the 2nd line, designating it as G4 (392 Hz). Notes on the 5 lines from bottom to top are E4, G4, B4, D5, F5 ("Every Good Boy Does Fine"). Spaces spell F-A-C-E.
Notes on Staff Lines (E - G - B - D - F)
Notes in Staff Spaces (F - A - C - E)
Bass Clef
Khóa Fa (F Clef)The Bass Clef (F Clef) places its two dots around the 4th line, designating it as F3 (174.6 Hz). Notes on the 5 lines are G2, B2, D3, F3, A3. Spaces are A-C-E-G.
Notes on Staff Lines (G - B - D - F - A)
Notes in Staff Spaces (A - C - E - G)
Notation Mapping (Letter vs. Solfège)
Middle C (C4, 261.6 Hz) is the bridge connecting both clefs. In Treble Clef, it sits on the 1st ledger line below the staff; in Bass Clef, it sits on the 1st ledger line above the staff.
| Notation | Solfège (EN) | Xướng Âm (VI) | Standard Middle Octave | Auditory Demo |
|---|---|---|---|---|
| C | Do | Đô | C4 (261.6 Hz) | |
| D | Re | Rê | D4 (293.7 Hz) | |
| E | Mi | Mi | E4 (329.6 Hz) | |
| F | Fa | Pha / Fa | F4 (349.2 Hz) | |
| G | Sol | Son / Sol | G4 (392.0 Hz) | |
| A | La | La | A4 (440.0 Hz) | |
| B | Si / Ti | Si | B4 (493.9 Hz) |