Libertango in A#

Libertango in A#

Astor Piazzolla compuso 'Libertango' en 1974 en Milán y publicó el álbum homónimo; es el tango más grabado del siglo XX, con versiones de Carlos Santana, Yo-Yo Ma, Grace Jones y miles de otros artistas. El título une 'libertad' y 'tango': Piazzolla liberó el tango de los salones y lo llevó a las salas de concierto. El ostinato Am-Dm-E7 es hipnótico, pulsante, imposible de ignorar — el tango como organismo vivo que no para.

Libertango 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 D# (ascending perfect fourth), D# to F (ascending whole step), F to F# (ascending half step), F# to G# (ascending whole step), G# to F (descending minor third). A half-step bass movement creates a strong leading-tone pull that demands resolution. The predominantly stepwise bass motion creates smooth, connected voice leading. 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.