This topic is about playing large and difficult chords and changing chords on the guitar and piano.

I have a Beginning Jazz Guitar Book by Jody Fisher and I am going to quote him right now.

"...Some Classical Guitar instructors teach that these movements should be learned like a "choreography" for the fingers, or like a "play" for a football team."

"...Sometimes chords will get gradually easier, but I find most of the time the chord will suddenly "snap" into place. This will also take time so the key word here is patience."

They sound like promising words, but up to this point my muscle memory is still the same. It's slow.
For two months, I have been taking a Jazz Piano course at York University and I have difficulty playing some lush Bill Evans chords. I am so slow.
I am auditioning for Jazz Guitar next year and I am preparing two contrasting pieces for two months so far and I am also slow.
I am also auditioning for Jazz Woodwinds and I play much better on the Alto Saxophone.

Is this problem of mine just a muscle memory issue? Or I don't have potential at all on the piano and guitar.
I need to know some feedback so I can concentrate on the Saxophone. I am not quitting on the piano and guitar, it's just that I need to take more time with what I'm good at.