On Green Dolphin Street in Si

Bronislau Kaper(1947)swingMedium Swing

On Green Dolphin Street in Si

On Green Dolphin Street in B: modal and tonal worlds collide — the opening tonic chord shifts unexpectedly before settling into conventional ii-V-I. Lydian over the static sections, Dorian and Bebop Major through the changes. Changes: BMaj7 – Bm7 – C#7 – CMaj7 – C#m7 – F#7 – EMaj7 – Em7 – A7.

On Green Dolphin Street in Si

B major mixes barre and open elements. The B chord itself is a barre at fret 2, but E and A are comfortable open chords forming the IV and V. The open B string rings as the root, allowing creative drone-based arrangements. B is a intermediate-level key on guitar because the open B string rings as the root and the open E strings provide the 4th — useful for sus4 voicings and drone effects. This key mixes open and barre shapes, making it a good intermediate challenge that builds fretboard fluency.

Voice Leading

The bass line moves through B to B (ascending unison), B to C# (ascending whole step), C# to C (descending half step), C to C# (ascending half step), C# to F# (ascending perfect fourth), F# to E (descending whole step), E to E (ascending unison), E to A (ascending perfect fourth). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. When the progression loops, the bass returns from A to B by whole step.

Scales for Improvisation

B major pentatonic works because every note is either a chord tone or a safe passing tone — there are no avoid notes. For soloing, this means you can play freely without clashing. Over dominant seventh chords, B Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 32 bars · Form: AABA

Chords: SiMaj7, Sim7, Do♯7, DoMaj7, Do♯m7, Fa♯7, MiMaj7, Mim7, La7.

Scales for Improvisation Si major, Si dorian, Si lydian, Si bebop major, Si major pentatonic.