Map it slowly
Locate F on white keys and G♭, B♭, D♭ on black keys. Try each hand separately before playing together; choose a fingering that keeps the wrist relaxed, without stretching between notes.
Arpeggio · G♭△7 · Piano
The G♭△7 arpeggio is G♭ – B♭ – D♭ – F — chord tones 1 3 5 7. G♭△7 is the tonic Imaj7 of a major key, and any maj7 chord; its sound is bright, settled, at rest. Below, every G♭, B♭, D♭, F on the two-octave keyboard is marked, with the root in gold. Press play to hear a one-octave arpeggio, or tap any note.
Visualizer
Piano
Guitar · standard tuning
Play loops the arpeggio up and down one octave (switch Loop off for a single pass). Tap any marked note to hear it. “Show” switches or combines the fretboard and keyboard; “Sound” picks the instrument you hear. Audio is synthesized in the browser.
Your next 10 minutes
Locate F on white keys and G♭, B♭, D♭ on black keys. Try each hand separately before playing together; choose a fingering that keeps the wrist relaxed, without stretching between notes.
Play G♭ – B♭ – D♭ – F in quarter notes at 60 bpm. Repeat starting from B♭, wrapping back to G♭. Do not speed up until every attack is even.
Alternate B♭ and F above a sustained G♭. These are degree 3 and 7. End a four-bar phrase on either one instead of always returning to the root.
Listen for this: G♭△7 has the colour “bright, settled, at rest”. Name the degrees as you play, so you can recognize the sound in another key rather than remembering only a shape.
Understand the sound
Compare the major seventh with the root. Their half-step proximity is especially exposed when placed next to each other; change the register to soften it.
Here the third is B♭, and degree 7 is F. Play G♭ in the bass and compare these voices individually before combining them.
Try B♭ – D♭ – F – G♭ as quarter notes, then repeat the first note and omit the last. The second phrase uses the same harmony with a different shape.
Separate the bass from the upper notes. If the low register sounds muddy, move the upper voices up an octave before adding more notes.
The black-key pitches in this collection are G♭, B♭, D♭. Use the groups of two and three black keys to orient yourself. Play G♭ and B♭ with each hand separately before combining the hands.
Before moving on, close the diagram and name the notes: G♭ · B♭ · D♭ · F. Then play a two-bar phrase from memory and leave two bars of silence.
On guitar
Reference
| Chord tone | Note | Interval from G♭ |
|---|---|---|
| 1 | G♭ | unison (0 semitones) |
| 3 | B♭ | major 3rd (4 semitones) |
| 5 | D♭ | perfect 5th (7 semitones) |
| 7 | F | major 7th (11 semitones) |
Goes with: F♯ Major (Ionian) (F♯ G♯ A♯ B C♯ D♯ E♯). Voicings: G♭△7 voicings on piano.
Take it to the bandstand.Practice Radio streams endless changes to play the G♭△7 arpeggio over through all twelve keys, with the chord and scale shown live — plus ear-training and call & response modes.
▶ Open Practice RadioCommon questions
G♭ – B♭ – D♭ – F. As chord tones: 1 3 5 7. Played one after another instead of together, that is the arpeggio.
G♭△7 is the tonic Imaj7 of a major key, and any maj7 chord. Its character is bright, settled, at rest.
F♯ Major (F♯ G♯ A♯ B C♯ D♯ E♯) — the arpeggio is the skeleton of that scale, so practise them together.
Play G♭ – B♭ – D♭ – F ascending from G♭, then descend; then start from each chord tone in turn (inversions) so your hand knows the shape from any note.
Keep going
Same arpeggio on guitar · Major 7th hub · chord-scale theory.
Other arpeggios from G♭