Cycle Of Fourths (or Circle Of Fourths) is a musical term. It is a listing of notes that move up by successive perfect fourths intervals. You can forget about that, I was just looking for a good name for this curly font and this is what I found!
Cycle Of Fourths is an elegant, handmade font. A little curly, a little old-fashioned maybe, but also out of the ordinary and unique.