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