Guitar & Fretboard
String Tension in Drop Tunings: Pitch and Scale Length
Estimate how retuning and scale length change the same string’s tension, with a Drop D example and clear limits on gauge, feel and instrument safety.
The archive
100 pieces on how music is built and how it is written down — with playable examples, tables you can check, and no filler.
♮ intro · ♯♯ intermediate · ♯♯♯♯ advanced — like key signatures, more marks means more to hold in mind
Guitar & Fretboard
Estimate how retuning and scale length change the same string’s tension, with a Drop D example and clear limits on gauge, feel and instrument safety.
Guitar & Fretboard
CAGED turns five open chords into movable shapes. This explains how the shapes connect, how to name a moved chord from its root string, and how to find one chord in several places.

The ebook
The site's working library as a structured ebook: intervals, keys, harmony, counterpoint, rhythm, form, tuning, orchestration and the history behind them.
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