On The Atchison Topeka And The Santa Fe in E

On The Atchison Topeka And The Santa Fe 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 B (descending perfect fourth), B to B (ascending unison), B to E (ascending perfect fourth), E to C# (descending minor third), C# to C (descending half step), C to D# (ascending minor third), D# to F# (ascending minor third), F# to G (ascending half step), G to C (ascending perfect fourth), C to E (ascending major third), E to B (descending perfect fourth), B to A (descending whole step), A to E (descending perfect fourth), E to E (ascending unison), E to A (ascending perfect fourth), A to A (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 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.