I Got it Bad and That Ain't Good in A#

Duke Ellington / Paul Francis Webster(1941)swing
Do Re MiC D E
A
B
C13
C13

Chord Diagrams — I Got it Bad and That Ain't Good in A# (Guitar)

Display
FingerNoteDegree

I Got it Bad and That Ain't Good 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 A# to A# (ascending unison), A# to D (ascending major third), D to G (ascending perfect fourth), G to C (ascending perfect fourth), C to G (descending perfect fourth), G to C (ascending perfect fourth), C to G (descending perfect fourth), G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to B (ascending tritone), B to D# (ascending major third), D# to A# (descending perfect fourth), A# to D# (ascending perfect fourth), D# to A# (descending perfect fourth), A# to D (ascending major third), D to G (ascending perfect fourth), G to B (ascending major third), B to F# (descending perfect fourth), F# to C (ascending tritone). 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 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 · 26 bars · Form: AB

Chords: A♯dim, A♯, D7, Gm, C13, Gm7, Cm7, G9, C7, F7, B7, D♯m6, A♯7, D♯, A♯6, Dm7, G7, Bdim, F♯7, C9.

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

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