Frenesí in A#

Frenesí in A#

Alberto Domínguez compuso 'Frenesí' en 1939 en Mérida, Yucatán. Artie Shaw la grabó en 1940 y vendió más de un millón de copias, convirtiéndola en el primer gran hit latino del mercado anglosajón. Glenn Miller, Charlie Parker y Chet Baker también la registraron. La secuencia Bb-Gm-Cm-F7 es una guía de progresiones latinas para todo improvisador; el movimiento Eb→Ebm en el puente oscurece el color con el préstamo del modo paralelo.

Frenesí 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 G (descending minor third), G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to C (descending perfect fourth), C to D# (ascending minor third), D# to D# (ascending unison), D# to C (descending minor third). 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.