Triads · September 12, 2026
By Justin James · Jazz trumpet player and founder of JazzValve · Updated September 13, 2026
Practice written D minor triad inversions on B-flat trumpet with clear fingerings, a comfortable starting range, and a repeatable chord-tone drill.
I can test this material on a B♭ trumpet by playing D–F–A, F–A–D, and A–D–F with the listed fingerings.
For written D minor triad inversions, trumpet fingerings cover D–F–A (root position), F–A–D (first inversion), and A–D–F (second inversion) on B♭ trumpet. Specifically, in this starting register, the fingerings are D4 — 1+3, F4 — 1, A4 — 1+2, D5 — 1, and F5 — 1.
D minor contains three chord tones: D, the root; F, the minor third; and A, the fifth. An inversion keeps those notes but changes which one is lowest.
Everything below uses written trumpet pitches, not concert pitches. On B-flat trumpet, written D minor sounds as concert C minor. If a backing track is labeled in concert pitch, choose concert C minor for these written notes.
Here, C4 means written middle C, one ledger line below the treble staff. These are the notes you need:
| Written note | Staff location | Valves | |---|---|---| | D4 | Space just below the staff | 1+3 | | F4 | First space | 1 | | A4 | Second space | 1+2 | | D5 | Fourth line | 1 | | F5 | Top line | 1 |
Notice that low D4 and upper D5 use different fingerings. Also, F4, D5, and F5 all use valve 1: your air and embouchure must select the correct pitch. Hear or sing each pattern before playing it rather than relying only on valve movement.
Start with these close-position shapes, where each chord tone appears once:
Play each note as a relaxed quarter note at 60 bpm. Leave a beat of silence after each three-note shape. Listen for an even tone and accurate pitch at every change.
If F5 is not yet comfortable, practice root position and first inversion first. Add second inversion when the upper notes speak without extra mouthpiece pressure. Range should not turn this into a strength exercise.
Set a metronome to 60 bpm in 4/4. Play three quarter notes, then take a quarter rest in each bar:
| Bar | Written notes | Fingerings | |---|---|---| | 1 | D4–F4–A4–rest | 1+3, 1, 1+2 | | 2 | F4–A4–D5–rest | 1, 1+2, 1 | | 3 | A4–D5–F5–rest | 1+2, 1, 1 | | 4 | F5–D5–A4–rest | 1, 1, 1+2 | | 5 | D5–A4–F4–rest | 1, 1+2, 1 | | 6 | A4–F4–D4–rest | 1+2, 1, 1+3 |
Descending a shape does not change its inversion: inversion is determined by the lowest pitch, not the first note played.
Repeat the six bars twice, then rest. On the first pass, tongue every note lightly. On the second, slur within each bar. Keep the pulse steady through the rests; do not rush to the next starting note.
When two consecutive rounds feel clean, raise the tempo by 4 bpm. If notes crack or your sound tightens, return to the previous tempo. You can keep the chord tones visible on the JazzValve D minor triad practice screen.
Once the drill feels familiar, play this two-bar phrase with straight eighth notes:
These phrases target D and F instead of simply running upward. Next, invent a two-bar answer that ends on A4. Keep using only D, F, and A so you learn to hear each chord tone as a destination.
For a wider note palette, try the D minor pentatonic scale drill, adding G and C around your triad tones. To compare inversion shapes in another chord, use the C major triad inversion drill.
Spend one minute on slow shapes, two minutes on the six-bar drill, and one minute inventing phrases. Rest between rounds. Aim to start on any of the three chord tones without searching for the fingering or losing the sound of D minor.