I have one month to learn some musical theory, if I need to learn something in particular, what it would be ? What basics I obligatory need ?
Taking into account that I play drums in a punk band, I know basic chords on guitar : without any idea of which notes I am doing : so I guess It's useless and I am starting from scratch.
I will learn 4 times per week, every learning session can be one hour. I am open to any kind of learning except with teacher : e-learning, books..
Why only one month ? Just for motivation, I know that learning can take long time, and I am a bit lazy to learn in general, by saying to myself only one month, it's easier for me to finally start.