Jazz Theory

I would like to recommend two courses to you because I believe that as a musician your life will be easier if you have studied the basics of music theory. Do you want to know what tones make up the chords and scales? What chord progressions are common in jazz?

There is the “Zero to Improv” course on learnjazzstandards(dot)com, which is a great way to get started. The “Jazz Theory Unlocked” course on jazzadvice(dot)com helped me understand the elements of a jazz composition. The chapter on the use of diminished chords was also enlightening.

These two courses helped me further.