Between 300 and 400 years ago, this archaic string of melody, harmony, and straight forward rhythm came about.  I don't read this kind of scribble, but I, like many others, have heard Pachelbel's Canon in D.  Christmas tunes, 80's orchestras, video games and more have ripped up this beautiful idea and tried to glue it back together.  Below is what I believe to be the most influential niche version, posing a striking composition highlighting the power of discipline and learning (read: Time, Standards, Challenge)  in lieu of the internet (read: all "hard skills"  are free and readily available in a computer-box near you)

This, to both my pair of ears and many pairs before me, is simply stunning.  The deft skill and accuracy, the angelic warbling tone....  This is an example of almost complete mastery AFAICT.  What granted Lim Jeong-hyun, generally referred to mononymously as funtwo, the ability to play at this level?  Like just about everything, it seems his track record on the internet plus his standards and time against the challenge of learning guitar equals...          ...the above video. 

Observe the 75% "slow" speed (thanks youtube and guitarteacherdotcom for access to this stuff):

....Coming up next:  Unpacking discipline and learning through funtwo's "guitar"