Atras De Nos in A#

Richard Boukas(1991)sambaMed. Samba ♩= 124
Do Re MiC D E
I
n
t
r
o
-
A
-
B
-
C
-
D
-
E
-
C
o
d
a
1
-
C
o
d
a
2
A♯6/9
A♯6/9
F♯6/9
F13♭9
A♯6/9
A♯6/9
F♯6/9
F13♭9
F13♭9
A♯6/9
D♯maj9
Gmaj9
A♯6/9
D♯13♯11
D♯13♯11
F♯6/9
F7♯9♯5
F13♭9
A♯6/9
F13♭9
A♯6/9

Chord Diagrams — Atras De Nos in A# (Guitar)

A♯6/9
EADGBEx123
5frEADGBE1112347frEADGBE2222x112frEADGBE11x234
F♯6/9
EADGBE111234
EADGBExx21346frEADGBE1111x28frEADGBE11x234
F13♭9
EADGBE111324
EADGBE1112347frEADGBE44x2138frEADGBE111134
Cm9
EADGBE2222x1
EADGBEx12436frEADGBE333x128frEADGBE111134
D♯maj9
3frEADGBE1111x4
5frEADGBEx2143x8frEADGBE1111x411frEADGBExx2314
D7♯9
4frEADGBEx2134x
7frEADGBE4127frEADGBE111x2310frEADGBE111324
Gmaj9
EADGBE21
EADGBE1112433frEADGBExx23149frEADGBEx2143x
D♯13♯11
D♯ - G - A♯ - C♯ - F - A - C
F7♯9♯5
F - A - C♯ - E♭ - G♯

Atras De Nos in A#

Atras De Nos in 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 F# (descending major third), F# to F (descending half step), F to C (descending perfect fourth), C to D# (ascending minor third), D# to D (descending half step), D to G (ascending perfect fourth), G to D# (descending major third), D# to F (ascending whole step). 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 perfect fourth.

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.

samba4/4 · 23 bars · Form: Intro-A-B-C-D-E-Coda1-Coda2

Chords: A♯6/9, F♯6/9, F13♭9, Cm9, D♯maj9, D7♯9, Gmaj9, D♯13♯11, F7♯9♯5.

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