Originally Posted by: SvanholmDoes it matter in the case? If there is a 12 bar blues with chord changes in key of Aminor or just simple Aminor with no chord change.

Ultimately, you can & should play whatever notes you like the sound of.

Music theory is a method for organizing musical ideas. It can help you understand why certain notes in certain combinations create certain sounds.

It won't replace you as the aesthetic chooser, deciding how you want it to sound. :) That's why we experiment with different note orders, chord tones & rhythmic phrases.

Even players that only go by sound are using the ideas of scales, keys, targeting chord tones. They just don't know the names of those things. They only know them as certain fretboard patterns make certain sounds. Identifying & mentally organizing those patterns & sounds can help you understand them better. That what's music theory is.

My tutorials will give you a great place to start to understand how to approach improv & how to experiment & start making your own choices! Have fun with it!