Theory is the language of sound. A PDF can tell you that a Dominant 7th chord contains a flat 7, but it is "better" when you can hear that tension and resolve it to the tonic while playing. Conclusion
Theory without application is useless. The "better" PDF doesn't just list the modes of the major scale; it shows you one pentatonic position, then how to modify it to get Dorian, Mixolydian, and Aeolian. It gives you one shape to memorize, not seven disconnected ones. teoria musical guitarra pdf better
For every concept you read, find it on your guitar. If the PDF explains a Perfect 5th, play five different Perfect 5ths on different string sets. Theory is the language of sound
