Printable worksheet
Octave numbers worksheet
Octave numbers practice: write each note with its octave number (middle C = C4) on treble, bass, alto or grand staff. Free printable sheets with answers.
Octave numbers worksheet
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Answer key
Octave numbers worksheet · Sheet #
About the Octave Numbers Worksheet
Octave numbers tell you which octave a note is in: middle C is C4, and the number goes up by one at every C. This free octave identification worksheet shows notes on a staff and asks you to write each note’s name with its octave number, so you can practise reading the number that goes with each pitch.
The sheets are built in your web browser. There is no sign-up, and nothing you enter is uploaded. Each worksheet shows notes on a staff, and every question asks for either the note name with its octave number or the octave number alone. You choose the difficulty, the number of questions, the clef, and whether sharps and flats appear. Answers can be shown on screen or printed on a separate answer key page.
How to use the Octave Identification Worksheet
- Set Difficulty to Easy, Medium or Hard. Medium is the default. Easy uses no ledger lines and natural notes only. Hard adds up to three ledger lines and sharps and flats.
- Set Questions to 10 or 20.
- Choose the Clef: Treble clef (default), Bass clef, Alto clef, Grand staff or Mixed clefs.
- Choose the Task: “Note name and octave number (F♯4)” (default) or “Octave number only”.
- Choose Notes per question: One note (default) or “A row of 4 to 6 notes”. A row has 4 notes at Easy, 5 at Medium and 6 at Hard.
- Choose Accidentals: “Sharps and flats at hard level” (default) or “Natural notes only”.
- Click New worksheet for a new random sheet. Click Show answers to see each answer, then Hide answers to hide them again.
- Click Print, or press Ctrl+P.
The address bar keeps your settings, including the sheet number, so the same link rebuilds the identical sheet. A teacher can share that link or reuse a sheet number. Invalid values in the URL fall back to the defaults. When you print, only the sheet appears, in two columns, and the answer key starts on a new page.
Begin with the treble clef and one note per question, then switch to Mixed clefs or Grand staff. Easy has no middle C on the treble, bass or grand staff, because middle C needs a ledger line there. The sheets work well for homework, a quick note-reading check, or a lesson on scientific pitch notation.
What are octave numbers?#
Octave numbers are the figures after a note letter, such as the 4 in C4, that show which octave the note belongs to. Two notes with the same letter but different octave numbers share a name but sit at different heights, and the higher number is the higher pitch.
What octave is middle C (C4)?#
Middle C is C4 on this page and on every sheet it generates. On the treble staff it sits on the first ledger line below the staff, and on the alto clef it sits on the middle line. Some keyboard and software conventions call middle C C3 or C5, but this page always uses C4.
What is scientific pitch notation?#
Scientific pitch notation names a pitch with a letter, an optional accidental and an octave number, such as F♯4 or B♭2. The octave number stays with the letter, so accidentals never change it: G♭3 is in octave 3. Two useful anchors are the G line of the treble clef, which is G4, and the F line of the bass clef, which is F3.
Where does the octave number change?#
The octave number changes at C, not at A. C4, D4, E4, F4, G4, A4 and B4 are all octave 4, and the next C is C5. Going down, the B just below middle C is B3. The explanation on every one-note question repeats this rule: the octave number goes up each time you pass a C.
How do you find the octave number of a note on the staff?#
Start from an anchor you know and count letter names up or down, adding one to the number each time you pass C. In the treble clef the G line (second line) is G4, so the space below the staff is D4 and the fourth space is E5. In the bass clef the F line (fourth line) is F3, so the note one step above the top line is B3 and the next C, on the first ledger line above, is middle C, C4. A4, the A above middle C, is the usual tuning note at 440 Hz.
On the grand staff, notes from C4 up are written on the treble staff and lower notes on the bass staff. The same octave notation is used on both, so a note on the fourth space of the bass staff with a flat is G♭3, and the line at the top of the treble staff with a sharp is F♯5.
Print the sheets for students, or include them in a product you sell, such as an Etsy download or a KDP book; no credit is required.
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