[Nice Piece Of Acoustic Guitar Work]

Absolutely love the harmonics

[Playing And Singing At The Same Time...]

Keep practicing. You know the saying...

[Tuners]

I use Guitar Toolkit on my Iphone

[How To Stop My Fingers From Hurting]

I get them too after playing for like 3 hours straight, I find it helps if I change the strings regularly. Also playing an electric guitar will not hurt your fingers so much because electric guitar strings won't have the same impact on your fingers

[What Do You Guys Think About Theory?]

my take on theory is that it's useful to an extent. Some of the great guitarists rely only on their ear & muscle memory But I believe theory helps as you advance.

[Pick Vs Fingers]

I play an acoustic & found that when picking with my fingers I have more control but the sound is clearer when using a pick. Personally I play fingerpicking songs using the fingers obviously & most solos with the pick.