Technique · October 20, 2026
By Justin Comstock · JazzValve creator, longtime guitarist and adult trumpet learner · Updated October 21, 2026
Jazz Trumpet Duet: Two Complete Parts for Listening Together
Play an original eight-bar duet for two B-flat trumpets, with complete parts, shared releases and a clear melody-and-support role swap.
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Get Blue Lines freeA jazz trumpet duet gives two players a useful challenge: keep your own part steady while listening to the other line. You can hear balance, entrances and releases much more clearly when there are only two horns.
This original eight-bar duet includes both complete parts. One player carries the moving melody while the other supplies slower harmony, then the roles switch. It works with two standard B-flat trumpets and a metronome; no piano or backing track is required.
What to agree on before playing
Choose a comfortable tempo, such as quarter note = 72 in 4/4, with one click per beat. Both players should be able to play the written range C4–B4 comfortably. If that range is not yet reliable, use a teacher's simpler duet rather than forcing the upper notes.
Decide who gives the count-in. Say one complete bar aloud, then begin together on the next beat 1. Agree to keep going to the end even if one note goes wrong. After the pass, stop and choose one place to fix.
Yamaha's discussion of chamber ensembles emphasizes listening to surrounding parts when balancing your own sound. Here the listening task is specific: can both players hear the melody, including when it moves to the other person?
Player 1 has the melody in bars 1–4. Player 2 has it in bars 5–8. The supporting line should stay clear but quieter than the melody. The melody player should not need to overpower a loud accompaniment.
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Use the same pitch language
Both parts below use written B-flat trumpet pitches. C4 is middle C, on the ledger line below the treble staff; E4 is the bottom line, G4 the second line, A4 the second space and B4 the middle line.
Two B-flat trumpets can read these parts exactly as written. Neither player needs to transpose relative to the other. Their written C4 sounds concert B-flat3. UTEP's instrument reference confirms the major-second downward transposition for standard B-flat trumpet.
If a pianist joins you, give them this concert-pitch chord plan. Each chord lasts one full bar:
| Bar | Written trumpet harmony | Concert piano harmony |
|---|---|---|
| 1 | C6 | B-flat6 |
| 2 | Fmaj7 | E-flatmaj7 |
| 3 | G7 | F7 |
| 4 | C6 | B-flat6 |
| 5 | C6 | B-flat6 |
| 6 | Fmaj7 | E-flatmaj7 |
| 7 | G7 | F7 |
| 8 | C6 | B-flat6 |
C6 here means the major-sixth chord C–E–G–A, not a pitch named C in octave 6. The octave numbers in the playing parts identify notes; chord symbols in this table identify harmony. The chord-symbol guide explains the other seventh-chord labels.
Read the rhythms before adding the horn
In the two part tables, q means a one-beat quarter note, h a two-beat half note, e an eighth note, and rest a one-beat quarter rest unless stated otherwise. Every bar contains four beats.
Read the notes in order. For example, the first melody bar places E4 on beat 1, G4 and A4 on beat 2 and its offbeat, G4 on beat 3, and a rest on beat 4.
Play the eighth-note pair evenly on the first counting pass. Then agree on a comfortable swing feel together. Avoid having one player exaggerate the long-short relationship while the other plays evenly. Use the swing-eighth guide separately if that difference needs work.
Lightly tongue all attacks. Sustain every note for its full listed duration, with no added gaps. Release into the rests at the agreed beat. This gives you an audible starting point before experimenting with shorter jazz articulation.
Player 1: complete eight-bar part
| Bar | Written notes and rests |
|---|---|
| 1 | E4 q, G4 e, A4 e, G4 q, rest |
| 2 | F4 q, A4 h, rest |
| 3 | G4 q, B4 q, F4 q, rest |
| 4 | E4 h, G4 q, rest |
| 5 | C4 h, E4 q, rest |
| 6 | F4 h, A4 q, rest |
| 7 | D4 h, F4 q, rest |
| 8 | C4 h, half rest |
In bars 1–4, keep the melody audible. At bar 5, reduce your level enough for Player 2's moving line to become the focus. Continue listening across the role change rather than treating your slower notes as a break from ensemble playing.
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Player 2: complete eight-bar part
| Bar | Written notes and rests |
|---|---|
| 1 | C4 h, E4 q, rest |
| 2 | F4 h, A4 q, rest |
| 3 | D4 h, F4 q, rest |
| 4 | C4 h, E4 q, rest |
| 5 | E4 q, G4 e, A4 e, G4 q, rest |
| 6 | F4 q, A4 h, rest |
| 7 | G4 q, B4 q, F4 q, rest |
| 8 | E4 h, half rest |
In bars 1–4, your longer notes form a harmonic frame under the melody. At bar 5, take the melodic role without suddenly pushing the sound. Both players finish the last half note together on beat 3 of bar 8, then count the remaining two beats silently.
Rehearse the places where you meet
Start with bar 2. Both players begin on F4. Player 1 moves to A4 on beat 2; Player 2 stays on F4 until beat 3, then joins A4. Listen to the change from unison to two different notes and back to unison. Neither player should change the beat to make the notes line up sooner.
Next try bar 3. Both parts reach F4 on beat 3 and release on beat 4. That shared arrival is a useful check: did the two lines finish as one sound, or did one enter or release early?
Finally play bars 4–5. Count the beat-4 rest in bar 4 together, then switch roles at the next downbeat. Avoid adding an extra pause to signal the handoff. The written silence already gives you space to prepare.
For a first rehearsal, play two bars and rest for two bars before repeating. Learn the joins before running the whole duet several times. Keep breathing comfortable during the rests, and stop if either player's sound becomes strained.
Record, swap and listen again
Record one complete pass. Listen with both horns down and answer three questions:
- Can you hear the melody change players at bar 5?
- Do the unisons in bars 2 and 3 settle together?
- Do both final notes end on beat 3 of bar 8?
Choose only one adjustment for the next pass. If the melody is hidden, first ask the supporting player to reduce volume. If the releases differ, count and clap the ending together. If the pitches disagree, isolate the shared note at an easy volume before rebuilding the bar.
Then swap the complete parts and repeat. Playing the other line makes its entrances and listening demands easier to understand. Once both versions are secure, compare a connected performance with one that uses slightly shorter quarter notes, keeping every entrance and rest in the same place. The articulation lesson offers a focused way to make that comparison.
For separate individual practice between rehearsals, the free Blue Lines workbook is available with email signup. Bring one clear listening goal to the next duet session.
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Free trumpet workbook
Blue Lines
Thirty days of focused B♭ trumpet practice: tone, time, jazz language and improvisation.
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Get Blue Lines freeSources
- UTEP: Instrument Transpositions for Musical Analysis — https://utminers.utep.edu/charlesl/transpose.html
- Yamaha: Chamber Ensembles Help Develop Student Leaders — https://hub.yamaha.com/music-educators/prog-health/student-leadership/chamber-ensembles-student-leaders/