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Night Fever in A

Key of A

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 F# to B (ascending perfect fourth), B to A (descending whole step), A to E (descending perfect fourth), E to D (descending whole step), D to A (descending perfect fourth), A to C# (ascending major third), C# to D (ascending half step), D to G# (ascending tritone), G# to C# (ascending perfect fourth), C# to B (descending whole step), B to F# (descending perfect fourth), F# to F# (ascending unison). 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 F# by unison.

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. Try the major blues scale — adding the flat 3rd as a passing chromatic note gives bends and slides an expressive, soulful quality.

disco4/4 · 54 bars · Form: ABCDC

Chords: F♯m7, Bm7, Amaj7, E, Dadd9, A, C♯m7, D, G♯m, C♯, B, F♯m, F♯.

Scales for Improvisation A bebop, A bebop major.

Diatonic chords: See all chords in the key of A