Dating scarlatti sonatas
Most music is still played on the guitar with this basic style unchanged.
Re-entrant tuning strings the instrument with the two lowest courses an octave higher than the current tuning.
Every student of the guitar should know a little of the alphabet, because it provides a window into the deep structure of the guitar’s language.
Here is Carlo Calvi’s alphabet page and a few simple pieces.
The reasons, aside from a difference of tuning (more on this below), is that the modern guitar has quite different musical properties.
The modern guitar is a baritone/tenor, but the baroque guitar is an alto instrument, about the body size of a viola.