Bluesette in Si

Jean 'Toots' Thielemans()waltzModerate Waltz
A

Chord Diagrams — Bluesette in Si (Guitar)

Bluesette in Si

Bluesette 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 A# (descending half step), A# to D# (ascending perfect fourth), D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth), C# to F# (ascending perfect fourth), F# to B (ascending perfect fourth), B to E (ascending perfect fourth), E to E (ascending unison), E to E (ascending unison), E to A (ascending perfect fourth), A to D (ascending perfect fourth), D to D (ascending unison), D to G (ascending perfect fourth), G to C (ascending perfect fourth), C to C# (ascending half step), C# to F# (ascending perfect fourth), F# to D# (descending minor third), D# to G# (ascending perfect fourth), G# to G# (ascending unison), G# to C# (ascending perfect fourth), C# to F# (ascending perfect fourth), F# to F# (ascending unison), F# to B (ascending perfect fourth). A half-step bass movement creates a strong leading-tone pull that demands resolution. The root motion by larger intervals (fourths and fifths) gives each chord change a strong, decisive character. When the progression loops, the bass returns from B to B by unison.

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.

waltz3/4 · 42 bars · Form: A

Chords: Si, La♯m7♭5, Re♯7♭9, Sol♯m7, Do♯7♭9, Fa♯m7, Si7, MiMaj7, Mi6, Mim7, La9, ReMaj7, Rem7, Sol9, DoMaj7, Do♯m7♭5, Fa♯9, Re♯m7, Sol♯7, Sol♯7♯5, Do♯m7, Fa♯7, Fa♯7♯9, SiMaj7.

Scales for Improvisation Si bebop, Si bebop major.