Quick question about OpenStudio courses
Beginner pianist here! I'm a 19 years old jazz guitarist/singer currently studying in jazz music school, at the beginning of his jazz piano journey.
I played classical piano three years when i was 10-12 years old, so i got the tecnique base.
I know harmony and theory quite well, and my right hand is pretty solid (for reference, i can play the first half of petrucciani's solo on brazilian like (live) from "both world").
however i really need to work on my left hand, chords/rhythm/comping and hand independence. i find open studio lesson really good, especially their guided practice session. i currently already have (and working on) the jazz piano for beginners and the 27 jazz etudes. with the offer, i wanted to purchase a course about chords, and i was inspired by the "Genius chords warmups". however, i don't know of it's the right choice or i should start with the "jazz chords for beginners". keep in mind that I know how to "create" chords, how to play them, im simply not fluent and don't have the "muscle memory" to play chords workout thinking about where the 3rd or the 7th is.
p.s. i'm aware that the best method to learn jazz is probably to transcribe solos and train the ear (at least in my experience it was), but now i would like to strenghten my foundations outside of "melodic soloing" (the only thing im kinda good at playing and transcrbiing)
to sum up, the question is: should I pay for the "Genius chords warmup" or should I start with the "jazz chords for beginners"?