B♭° arpeggio & chord for gypsy jazz
The B♭° arpeggio is built from the notes B♭ (R), C# (♭3), E (♭5), G (°7). On Haute Gitanerie you can see it across the whole guitar neck — contained position boxes, long diagonal forms, and its parent scale (B♭ diminished) — with note names in English (C D E) or solfège (Do Ré Mi).
The B♭° chord
The B♭° chord voicing uses those same notes (B♭ (R), C# (♭3), E (♭5), G (°7)). Switch the fretboard to Chords to see gypsy-jazz voicings for B♭°, or keep Arpeggio to practise the tones one at a time — same shape, two ways to hear it.
How to practise the B♭° arpeggio
Start with a contained position box near the low strings, then move it up the neck fret by fret, or follow a diagonal form for a two-octave sweep in the manouche style. Every note is labelled with its interval (R, ♭3, ♭5, °7), so you always know where the root, third, fifth sit.