Cornet Fingering Chart: Play Your First Jazz Phrase

This cornet fingering chart gives you the written notes and valve combinations to play a C major scale right now. If you play B-flat trumpet, use exactly the same fingerings. The instruments feel different, but their standard valve patterns match.

Start with written C4, the middle C one ledger line below the treble staff. Play C4–D4–E4–G4, using open–1+3–1+2–open. Give each note one beat, then rest for four beats. Aim for four centered sounds rather than four loud attacks.

How to read your cornet fingering chart

This chart is for a standard three-valve B-flat cornet or B-flat trumpet. All pitches below are written pitches, not concert pitches. Written C sounds concert B-flat, a whole step lower.

Number the valves from the mouthpiece end:

• 1: index finger, nearest the mouthpiece.
• 2: middle finger.
• 3: ring finger, nearest the bell.
• Open: no valves pressed.
• 1+3: press the first and third valves together.

Keep your fingertips resting lightly on the buttons. Then press each valve completely down. Half-pressed valves can make a note sound muffled or interrupt its response.

However, valves do not choose the note by themselves. Written C4, G4, and C5 are all open. Your air and embouchure select the register, so listen for the pitch before you play.

For more help coordinating those jobs, see Fingering for the Trumpet: A Practical Jazz Guide.

Written notes and standard valve combinations

Use this cornet fingering chart from written low F-sharp up to C5. C5 sits in the third space of the treble staff. Enharmonic names, such as F-sharp and G-flat, share a fingering here.

| Written note | Valves | |---|---| | F♯3 / G♭3 | 1+2+3 | | G3 | 1+3 | | G♯3 / A♭3 | 2+3 | | A3 | 1+2 | | A♯3 / B♭3 | 1 | | B3 | 2 | | C4 | Open | | C♯4 / D♭4 | 1+2+3 | | D4 | 1+3 | | D♯4 / E♭4 | 2+3 | | E4 | 1+2 | | F4 | 1 | | F♯4 / G♭4 | 2 | | G4 | Open | | G♯4 / A♭4 | 2+3 | | A4 | 1+2 | | A♯4 / B♭4 | 1 | | B4 | 2 | | C5 | Open |

These are standard fingerings, not a guarantee of perfect tuning. Written low C-sharp and D commonly run sharp. If your instrument has an adjustable third-valve slide, extend it as needed while checking a tuner or drone.

Do not force your lips downward to fix every sharp note. Instead, establish a relaxed sound first, then adjust the slide and listen again.

Turn the chart into a C major scale

Set a metronome to 60 beats per minute. Play these written notes as quarter notes:

C4–D4–E4–F4 | G4–A4–B4–C5

The corresponding fingerings are:

Open–1+3–1+2–1 | open–1+2–2–open

Then descend through the same notes. Rest after each direction, because tired lips can make a coordination problem seem worse than it is.

On B-flat trumpet, the D4-to-E4 change deserves special attention. Valve 1 stays down while valve 3 rises and valve 2 drops. If those movements arrive separately, you may hear a brief unwanted note between the targets.

Practise D4–E4–D4–E4 slowly, first tongued and then slurred. Keep the air moving through the change instead of restarting it with every finger movement.

If C5 cracks or feels squeezed, stop at G4 today. A clear five-note pattern teaches more than repeated strained attempts at the octave. The Trumpet Fingering Guide: Notes, Valves, and Clean Changes offers another useful reference for this work.

Make the notes sound like a phrase

Now play this two-bar exercise in 4/4:

• Bar 1: C4 quarter note, D4 quarter note, E4 quarter note, G4 quarter note.
• Bar 2: E4 quarter note, D4 quarter note, C4 half note.

Use a light “doo” attack. Let the final C settle for its full two beats. Next, repeat the phrase slightly softer, keeping the rhythm just as clear.

For a listening reference, try Louis Armstrong's “Cornet Chop Suey,” recorded with his Hot Five in 1926. Listen for rhythmic clarity and the shape of his phrases. This exercise is not a transcription; the recording supplies a musical reference beyond valve numbers.

Once the pattern feels comfortable, explore G Major Pentatonic Scale: Trumpet Exercises for Jazz Phrasing. However, keep today's goal small: reliable notes, steady time, and an unforced sound.

Take the chart into practice

Use the cornet fingering chart to check a combination, then look away and play from memory. That small step connects the printed note with its sound and physical movement.

Open JazzValve's C major scale screen. Play written C4–D4–E4–F4–G4–A4–B4–C5, then descend at 60 beats per minute. Finish with C4–D4–E4–G4 | E4–D4–C4, holding the last C for two beats.