Disco · Bb Major · 126 BPM
8-bar arrangement from the “September Vibes” demo, transposed from E major to Bb major, at 126 BPM. Chord chart, scale positions and practice drills for Bb major (also written A# Major).
Open in the app · Bb · 126 BPMHear the disco feel: “September Vibes” · E major · 126 BPM
This recording is the original “September Vibes” demo in E major at 126 BPM. It is not transposed: it lets you hear the disco feel. The app generates your track in Bb major.
8-bar arrangement from the “September Vibes” demo, transposed from E major to Bb major. Count four beats per bar; each card shows where the chord starts.
Chart of the bundled demo arrangement, transposed from E major with every interval kept. The demo's inspiration prompt is a style reference, not a transcription of a song.
The app opens with the style, key, tempo and this chart filled in; press Generate to create your track (it counts toward your daily generations). The original demo opens the recorded arrangement without a generation.
Disco lives on the I–ii vamp with maj7 / m7 extensions. Four-on-the-floor under it.
Three scales that sit well over disco in Bb major. Each one gives the line a different color — try them all and notice what changes.
Five-fret windows in standard tuning, anchored on Bb on the low E string. Highlighted notes are the root.
| String | fret 5 | fret 6 | fret 7 | fret 8 | fret 9 |
|---|---|---|---|---|---|
| e | Bb | C | |||
| B | F | G | Ab | ||
| G | C | D | Eb | ||
| D | G | Ab | Bb | ||
| A | D | Eb | F | ||
| E | Bb | C |
| String | fret 5 | fret 6 | fret 7 | fret 8 | fret 9 |
|---|---|---|---|---|---|
| e | Bb | C | |||
| B | F | G | |||
| G | C | D | |||
| D | G | Bb | |||
| A | D | F | |||
| E | Bb | C |
Play only the root on the first beat of each change: Bb (bar 1, Bbmaj7), G (bar 2, Gm7), Eb (bar 3, Ebmaj7), F (bar 4, F7), Bb (bar 5, Bbmaj7), G (bar 6, Gm7), Eb (bar 7, Ebmaj7), F (bar 8, F7). Keep counting through every bar that holds the same chord; the form resolves back to Bb.
When each chord arrives, land on its third and hold it for a beat: D over Bbmaj7, Bb over Gm7, G over Ebmaj7, A over F7. Then repeat with the seventh (see the table) to hear how the line leads into the next chord.
Play Bb Mixolydian (Bb C D Eb F G Ab) up and down in frets 5–9, one note per beat at 126 BPM. Start and finish on Bb: 6th string fret 6, or 5th string fret 1 for the next position up.
| Chord | Root | 3rd | 7th / 6th |
|---|---|---|---|
| Bbmaj7 | Bb | D | A (7) |
| Gm7 | G | Bb | F (b7) |
| Ebmaj7 | Eb | G | D (7) |
| F7 | F | A | Eb (b7) |
Chord chart, scale positions and practice drills in the keys disco is most often played in.
Open the app with Disco, Bb, 126 BPM and this chart pre-filled. Press Generate when you are ready.
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