Polka Dots and Moonbeams in A#

Jimmy Van Heusen / Johnny Burke(1940)ballad
Do Re MiC D E
A
B

Chord Diagrams — Polka Dots and Moonbeams in A# (Guitar)

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Polka Dots and Moonbeams in A#

Key of A#

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 G to A# (ascending minor third), A# to F (descending perfect fourth), F to C (descending perfect fourth), C to D (ascending whole step), D to A (descending perfect fourth), A to D# (ascending tritone), D# to C# (descending whole step), C# to D (ascending half step), D to A# (descending major third), A# to A (descending half step), A to E (descending perfect fourth), E to A# (ascending tritone), A# to D# (ascending perfect fourth), D# to D (descending half step), D to E (ascending whole step), E to B (descending perfect fourth), B to G (descending major third). 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 G to G by unison.

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.

ballad4/4 · 26 bars · Form: AB

Chords: Gm7, A♯Maj7, F7, Cm7, D7, Am7♭5, D♯m6/F♯, C♯m7, Dm7, A♯/F, A7, Em7♭5, A♯6, D♯dim7, DMaj7, Em7, Bm7, G7.

Scales for Improvisation A# bebop, A# bebop major.

Diatonic chords: See all chords in the key of A#