What key is That's All in?

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 C# (ascending whole step), C# to D# (ascending whole step), D# to E (ascending half step), E to F# (ascending whole step), F# to G# (ascending whole step), G# to F (descending minor third), F to D (descending minor third), D to G# (ascending tritone), G# to F# (descending whole step), F# to F# (ascending unison), F# to B (ascending perfect fourth), B to E (ascending perfect fourth), E to C# (descending minor third), C# to E (ascending minor third), E to E (ascending unison), E to G# (ascending major third), G# to F# (descending whole step), F# to D# (descending minor third). A half-step bass movement creates a strong leading-tone pull that demands resolution. The mix of stepwise and leap motion balances smoothness with harmonic drive. When the progression loops, the bass returns from D# to B by major third.

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.

ballad2/2 · 32 bars · Form: AABA

Chords: Si, Do♯m7, Re♯m7, Mim7, Fa♯7, Sol♯9, Fam7♭5, Redim7, Sol♯7♭9, Fa♯7♭9, Fa♯m7, Si9, MiMaj79, Do♯9, MiMaj7, Mi6, Sol♯m7, Fa♯Maj79, Re♯9.

Scales for Improvisation Si bebop, Si bebop major.