Bemsha Swing in La#

Thelonious Monk, Denzil Best(1952)swingMedium Swing
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Chord Diagrams — Bemsha Swing in La# (Guitar)

Bemsha Swing in La#

Monk and Denzil Best's collaborative groove piece channels Monk's rhythmic wit through Mixolydian and Lydian Dominant color over a loping A# swing. The deceptively simple head conceals harmonic surprises that reward careful listening and internalization. Study the A#7 – C#7 – C7 – F#7 changes to develop command of Lydian Dominant dominant color in a swinging context.

Bemsha Swing 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 A# to C# (ascending minor third), C# to C (descending half step), C to F# (ascending tritone). 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 F# to A# by major third.

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 · 16 bars · Form: AABA

Chords: La♯7, Do♯7, Do7, Fa♯7.

Scales for Improvisation La# mixolydian, La# major blues, La# lydian dominant, La# bebop major, La# major pentatonic.