#3
It is a multi scale guitar. the notes on each fret will be more in tune than on a standard guitar.

It is just another flavor
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#4
In addition, having a longer scale length on the lower tuned strings facilitates having more tension on the low end (so they sound tight and don't flop around) and less tension on the high end (easier to bend/manipulate the string for solos) without resorting to a wide discrepancy in string gauge. It's especially popular for people who downtune their instruments.
#5
Quote by Robbgnarly
It is a multi scale guitar. the notes on each fret will be more in tune than on a standard guitar.

It is just another flavor

That is actually incorrect. That refers to true temperment frets, not multi scale frets.

The purpose of a multi scale guitar is to have a longer scale on the low strings, to have more tension on them for lower tunings, and a standard scale on the high strings so they arnt so tight.