Mr. P.C. in La#

John Coltrane(1960)swingFast Swing
A

Chord Diagrams — Mr. P.C. in La# (Guitar)

Mr. P.C. in La#

Coltrane's minor blues blends modal openness with traditional blues form, supporting Dorian improvisation over the tonic minor, Harmonic Minor tension approaching the V chord, and Minor Pentatonic phrasing for raw blues expression. The medium-fast swing feel rewards both structured bebop lines and freer modal exploration. One of the most versatile minor blues in the repertoire.

Mr. P.C. in La#

A# (Bb) major requires barre chords rooted at fret 1 on the A string or fret 6 on the E string. Despite the barre demands, it is a common key in funk, New Orleans R&B, and brass band music. The open D string can ring as the major third for added color. A# is a intermediate-level key on guitar because the open D string is the major 3rd of Bb, adding a bright color if allowed to ring. Expect to rely on barre chords throughout, which builds hand strength and unlocks the entire fretboard.

Voice Leading

The bass line moves through B to E (ascending perfect fourth), E to G (ascending minor third), G to F# (descending half step), F# to C# (descending 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 C# to B by whole step.

Scales for Improvisation

A# 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, A# Mixolydian adds the flat seventh for an authentic blues-rock edge.

swing4/4 · 12 bars · Form: A

Chords: Sim7, Mim7, Sol7, Fa♯7, Do♯m7♭5.

Scales for Improvisation La# dorian, La# minor pentatonic, La# minor blues, La# harmonic minor, La# bebop minor, La# bebop.