Notation & reading
Bass clef
Bass clef is an F clef placing the F below middle C on the fourth line of the staff, and it is the primary clef for cello and double bass.
The two dots of the symbol sit either side of the fourth line, marking it as F3. Line notes read G, B, D, F, A and spaces A, C, E, G. It covers cello, double bass, bassoon, trombone, tuba, and the left hand of the piano.
Double bass parts are written in bass clef but sound an octave lower than notated, which keeps the part on the staff instead of burying it in ledger lines. Cellists move up to tenor and then treble clef as the music climbs.
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Read bass clef from its F landmark
The fourth line from the bottom is F3. One staff position below it is E3 in the third space; one more step down is D3 on the middle line.
Fourth line: F3 → space below: E3 → middle line: D3
On the cello, these are sounding pitches as well as written pitches. For double bass, the written note names are the same but the instrument sounds an octave lower. The example has no key signature or accidentals.
Check your understanding
From D3 on the middle line, move down one staff position, then one more. Which two written notes do you reach?
Show answer and explanation
C3 in the second space, then B2 on the second line. Descending from C to B moves into the next lower numbered octave.
A common mix-up
Bass clef does not mean every note is below middle C. Ledger lines extend the staff in both directions. Middle C (C4) sits on the first ledger line above a bass-clef staff.
Related terms
Every term in this glossary is taught in context somewhere in Arco's curricula, on the staff, on the keyboard, and on your own fingerboard at the same time.