Trombone Positions Chart and How the Trombone Works

Updated on October 30, 2019
Tim Curd profile image

Tim teaches musical instruments in schools and colleges. He also plays the trumpet in a function band.

Learn the Proper slide positions for trombone.
Learn the Proper slide positions for trombone.

Trombone Slide Position Chart

Below, you'll find a useful chart that shows the most commonly used slide positions for trombone (bass clef in C). Some trombones have a trigger which is referred to as an F attachment and replaces 6th position. This chart is for a standard tenor trombone without a trigger. The positions marked #2nd and #3rd are to be played slightly shorter.

Trombone Slide Position Chart
Trombone Slide Position Chart

The Open Notes on a Trombone

The trombone has several "open notes" that are all played on the lip with the slide in. These are the same notes as the harmonic series that a bugle plays. You move between the open notes by tightening your lips to play higher and loosening them to play lower. The main open notes (listed from lowest to highest) are Pedal Bb, Bb, F, Bb, D, F, Ab and top Bb. More skilful players develop their range but generally the highest note at Grade 8 is a top Bb.

The Open Notes on a Tenor Trombone

The open notes/harmonic series
The open notes/harmonic series

How Many Notes Can the Trombone Play?

Although the tenor trombone doesn't have valves like a trumpet, it can still play a fully chromatic scale of about 2 and a half octaves. The lowest commonly used note on the trombone is a written E below stave (bass clef). The highest note, for most competent players, is a high C, which is written an octave above the stave (bass clef). The tenor trombone can also play a lower pedal Bb. A trombone with an F attachment can extend chromatically in to the lower notes.

The Range of a Tenor Trombone

The range of a Tenor Trombone
The range of a Tenor Trombone

How Does Slide Work on a Trombone

With just the open notes, you are limited to what you can play. To make the trombone fully chromatic, you will need to use the slide. On the trombone there are 7 slide positions. By extending the slide you lower the pitch of each open note.

What the 7 Slide Positions on Trombone Do

  • 1st Position: Open
  • 2nd Position: Lowers the pitch by a semitone
  • 3rd Position: Lowers the pitch by 2 semitones (a tone)
  • 4th Position: Lowers the pitch by 3 semitones (a minor 3rd)
  • 5th Position: Lowers the pitch by 4 Semitones (a major 3rd)
  • 6th Position: Lowers the pitch by 5 semitones (a perfect 4th)
  • 7th Position: Lowers the pitch by 6 semitones (an augmented 4th)

By using these positions on each open note your are able to achieve full chromaticism.

Trombone Slide Position Video

Where Are the Slide Positions on a Trombone.

The exact position of each note may vary from trombone to trombone. The best way to find the exact slide position for each note is to use a tuner. Make sure the note F (4th line bass clef) is in tune by using the tuning slide at the back of the trombone. You can then find the exact position of each note by descending chromatically through the positions.

The positions on the trombone are as followed.

I have used the open note F as an example.

  • 1st Position: (F) In.
  • 2nd Position: (E) Out about an inch and a half.
  • 3rd Position: (Eb) Fingers by the bell.
  • 4th Position: (D) Wrist by the bell.
  • 5th Position: (C#) Wrist just past the bell by about 2 inches.
  • 6th Position: (C) Nearly a full reach. You shouldn't be able to see the stockings.
  • 7th Position: (B) Just past the stockings.

The F attachment can replace 6th position (low C) which is very useful for younger players who can't reach this far. The equivalent of 7th position (low B) can be achieved by combining the F attachment with a longer 2nd position.

The open note Ab is slightly flat. This is why the notes F# and G are played in shorter positions to compensate for the tuning. This is marked by #3 (F#) and #2 (G) or some times marked as +2 and +3.

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