Evidence in La#

Thelonious Monk(1948)swingMedium

Evidence in La#

Monk's angular bebop composition — built on the "Just You, Just Me" changes — deploys Bebop Major, Mixolydian, and Dorian language through a distinctly personal A# lens. The rhythmic displacement and melodic chromaticism challenge conventional bebop phrasing patterns. The A#Maj7 – Gm7 – Cm7 – F7 – D#7 – G#7 – C#7 changes sharpen a soloist's sense of metric flexibility and harmonic surprise.

Evidence 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 G (descending minor third), G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to D# (descending whole step), D# to G# (ascending perfect fourth), G# to C# (ascending perfect fourth). 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 A# by minor 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 · 32 bars · Form: AABA

Chords: La♯Maj7, Solm7, Dom7, Fa7, Re♯7, Sol♯7, Do♯7.

Scales for Improvisation La# major, La# mixolydian, La# dorian, La# bebop major, La# major pentatonic.