La 50s Doo-Wop
I – vi – IV – V progression in La major
La 50s Doo-Wop — I – vi – IV – V
The A I–vi–IV–V (A – F#m – D – E) defined the doo-wop era and still drives pop and R&B. Mixolydian works over the IV–V movement while the Bebop Major scale outlines the I chord with chromatic passing tones. With seventh voicings (AMaj7 – F#m7 – DMaj7 – E7), it develops the jazzier sheen of classic 1950s vocal harmony.
Playing in La major
A major is a rock and blues cornerstone. The open A string delivers a strong root, while both E strings ring as the fifth. Classic A-D-E progressions practically play themselves with open cowboy chords. The open high E is the fifth, reinforcing power. A is a beginner-level key on guitar because the open A string is the root and the open E strings provide the fifth above and below, creating a massive low-end anchor. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through A to F# (descending minor third), F# to D (descending major third), D to E (ascending whole step). 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 E to A by perfect fourth.
Capo Transposition
To play in A using familiar open chords: capo 2 with open G shapes; capo 5 with open E shapes; capo 7 with open D shapes. Choose the capo position that gives you the voicings you prefer — lower capo positions produce a fuller sound, while higher positions create a brighter, mandolin-like timbre.
Scales for Soloing
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.
Strumming Pattern
Drive with all downstrokes at 140+ BPM for raw punk energy, or use D-D-DU-UDU for classic rock. Palm mute the verse and open up the strumming on the chorus for dynamic contrast.