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Rio De Maio in E
Key of E
E major is arguably guitar's most powerful key. The open low E and high E strings ring sympathetically as the root, while the open B provides the fifth. This triple reinforcement gives E-based riffs and chords unmatched depth and volume. E is a beginner-level key on guitar because both the low E and high E strings ring as the root, and the open B is the fifth — three open strings reinforce the tonic chord. Beginners will find this key approachable since most chords use open voicings with minimal stretching.
Voice Leading
The bass line moves through B to B (ascending unison), B to E (ascending perfect fourth), E to A (ascending perfect fourth), A to C# (ascending major third), C# to C# (ascending unison), C# to C# (ascending unison), C# to C# (ascending unison), C# to A (descending major third), A to F# (descending minor third), F# to D# (descending minor third), D# to G# (ascending perfect fourth), G# to G# (ascending unison), G# to C (ascending major third), C to A (descending minor third), A to F# (descending minor third), F# to B (ascending perfect fourth), B to C# (ascending whole step), C# to A# (descending minor third), A# to E (ascending tritone), E to F# (ascending whole step), F# to B (ascending perfect fourth), B to F (ascending tritone), F to E (descending half step), E to D# (descending half step), D# to D# (ascending unison), D# to G# (ascending perfect fourth), G# to F# (descending whole step), F# to G# (ascending whole step), G# to G (descending half step), G to C (ascending perfect fourth), C to F (ascending perfect fourth), F to D (descending minor third), D to E (ascending whole step), E to A (ascending perfect fourth), A to G# (descending half step), G# to F# (descending whole step), F# to F# (ascending unison), F# to G# (ascending whole step), G# to G (descending half 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 G to B by major third.
Scales for Improvisation
E 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, E Mixolydian adds the flat seventh for an authentic blues-rock edge.