The Music Staff and Clefs - Treble, Bass, Alto, Tenor

Sheet music writes pitch as a picture: the higher a note sits on the page, the higher it sounds. The staff gives that picture a precise grid, and the clef tells you which notes the lines and spaces stand for. Once you know two or three reference notes per clef, you can read anything by counting up or down.

The staff

The staff (or stave) has five lines and four spaces. Lines and spaces are counted from the bottom up: the bottom line is line 1, the top line is line 5.

Every line and every space is one letter name. Moving from a line to the next space up (or a space to the next line) moves one letter up the alphabet: line, space, line, space... A B C D E F G, then A again.

Without a clef, the staff is just a grid. The clef at the start of each line of music fixes one note to one line, and everything else follows from there.

Treble clef (G clef)

The treble clef is the curly symbol most people picture when they think of music. It is also called the G clef, because its inner spiral curls around line 2, marking that line as G4 (the G above middle C).

Treble clef is used for higher instruments and voices: right hand of the piano, violin, flute, trumpet, soprano and alto voices, and guitar.

• Lines (bottom to top): E G B D F, mnemonic "Every Good Boy Does Fine".
• Spaces (bottom to top): F A C E, which spells "FACE".

Bass clef (F clef)

The bass clef is the F clef. Its two dots sit on either side of line 4, marking that line as F3 (the F below middle C).

Bass clef is used for low instruments and voices: left hand of the piano, bass guitar, double bass, cello, bassoon, trombone, tuba and bass voices.

• Lines (bottom to top): G B D F A, mnemonic "Good Boys Do Fine Always".
• Spaces (bottom to top): A C E G, mnemonic "All Cows Eat Grass".

A common trap: readers who know treble clef try to read bass clef with the same letters. They are offset by two steps. The bottom line is E in treble but G in bass. Learn bass clef as its own language, not as a translation.

Middle C and the grand staff

Middle C (C4) sits right between the two clefs:

• in treble clef, middle C is on one ledger line below the staff;
• in bass clef, middle C is on one ledger line above the staff.

It is the same pitch in both places.

Piano music joins a treble staff and a bass staff with a brace into the grand staff. The right hand usually reads the top staff and the left hand the bottom staff. Together they cover the central range of the keyboard, with middle C as the meeting point, so a melody can pass smoothly from one staff to the other.

Ledger lines

When a note is too high or too low for the five lines, short extra lines called ledger lines extend the staff. They follow the same line–space pattern.

Notes directly under or over the staff (without a ledger line) are in the space: D4 hangs below the treble staff, G5 sits on top of it; F2 hangs below the bass staff, B3 sits on top of it.

Reading many ledger lines quickly is hard for everyone. Instead of counting every line, memorize a few landmarks (middle C, the C two ledger lines above treble = C6, the C two ledger lines below bass = C2) and read from those.

Alto clef and tenor clef (C clefs)

The C clef looks like a bracket with a point in the middle. Wherever that point sits, that line is middle C. It can be placed on different lines; two positions are still used today.

Alto clef

The C clef on line 3 (the middle line) is the alto clef. It is the standard clef for the viola and is sometimes used for alto trombone.

• Lines (bottom to top): F3 A3 C4 E4 G4
• Spaces (bottom to top): G3 B3 D4 F4

Tenor clef

The C clef on line 4 is the tenor clef. Cello, bassoon and trombone switch to it for higher passages, so they avoid writing many ledger lines above bass clef.

• Lines (bottom to top): D3 F3 A3 C4 E4
• Spaces (bottom to top): E3 G3 B3 D4

Why so many clefs?

All clefs exist for the same reason: to keep the notes of an instrument inside the staff as much as possible. Every clef is just a different window onto the same long ladder of pitches. The treble clef window shows roughly from middle C upward, the bass clef from middle C downward, and the C clefs sit in between.

Small details that help reading

• Stems: notes below the middle line usually have stems going up on the right; notes on or above the middle line have stems going down on the left. This keeps the music compact, and has no effect on the sound.
• Accidentals (#, b, natural) are written before the note, on the same line or space.
• Key signatures appear right after the clef on every line of music; see Key signatures.
• Octave signs: "8va" above notes means play an octave higher; "8vb" below means play an octave lower. A small 8 under the treble clef means the music sounds an octave lower than written, as for guitar.

Practice

1. Say the treble clef lines and spaces out loud from bottom to top, then from top to bottom, until you can do both without the mnemonic.
2. Do the same for bass clef. Then mix them: name line 2 in treble (G4), line 2 in bass (B2), space 3 in treble (C5), space 3 in bass (E3).
3. Find middle C in both clefs, then name the notes on the first two ledger lines above and below each staff.
4. Write the C major scale from C4 to C5 in treble clef on staff paper, then from C3 to C4 in bass clef on bass staff paper.
5. Practise five minutes a day with the note trainer: speed comes from short daily sessions.

ToolsNote Reading TrainerName the notes on the treble or bass clef as fast as you can and build reading speed.

Next steps:

• Worksheets: Reading treble clef 1, Reading treble clef 2, Reading bass clef 1 and Reading bass clef 2.
• Printables: grand staff paper and the piano notes chart.
• Lessons: Note names, Note values and rhythm and Key signatures.