How to learn guitar efficiently?

Question

Hi, I've been playing guitar for 2, maybe 3 months. I started by learning some basic chords, and i've learned 2 songs. I don't want to just keep learning one song at a time as I feel that is inefficient and the wrong way to learn guitar.

I want to learn some theory so that I can get started on actually understanding how the guitar works.

I'm starting this by learning some symbols like whole note, half note, etc.

Before I get too detailed in the theory, would it be best to learn more chords???

Here are the ones I know, A, Am, Asus2, Asus4, C, C7, C2 D, Dsus2, Dsus4, Dm, Dm2, Dm4, E, E7, Em, F, F7, G, G/B

and I'm working on Bm...

Which chords should I commit to before embarking on the mission to understand theory??

(Also one more thing. I was trying to learn the different note lengths are, half, whole, eighth, etc. However, I'm not sure how long, a "beat" lasts for. One whole note is "four beats". However, I'm not sure how long that is.)

Answer 1

You should know 3 ways to play E, A, D, G, and C major and minor.

Learn the barre chord shapes so that you can play every major and minor chord in at least two ways. Then get into 7th chords.

A beat is completely based on tempo. Tempo is basically speed. Like Dragonforce is at like 200 beats per minute, which makes one beat incredibly fast. On theo ther hand, classical music of some sort will be much slower, and a beat will be longer. One beat is all based on refence, depending on how fast the song actually is, or how fast you're playing.