Red diagonals indicate minor 3rds spanning the 3rd Rail. Roman numerals indicate their respective scale degrees. Above you see the p...

So far we've examined the 7th chord forms which radiate around the 3rd Rail – that problematic nexus of the 2nd and 3rd strings. By tre...

In the previous post, we examined the three minor 7th chords rooted on the 4th string and centered on the 3rd Rail , then added notes a thi...

Here's an set of patterns which make clear use of the 3rd Rail  symmetry to simplify navigation. We can think of 7th chord arpeggios as...

What's the best way to think of the 3rd Rail?  How can you avoid hitting a wrong note when you move across it? Can't the guitar jus...