Originally Posted by swingbabymix
For example, C - Am- F-G, I used to input the left hand BASS is C, A, F, G
The right hand is 135, 613, 461, 572

Now it has become. The left hand is still C A F G, and the right hand is 125, 125, 125, 125

Just like the picture:
[Linked Image - Only viewable when logged in]

This is the chord progression I entered on my NI guitar. I think it sounds better.
I exported the audio. Download it here.
https://ufile.io/bmctazlr

If this is correct, then I can boldly try to tune the inner notes on the root note without changing the root note, and many nice chords will appear.

This chord progression sounds great. You have an ostinato in your right hand while the bass changes with your left. With music, there are two basic kinds of harmony.

MY SONGS...
Audiophile BIAB 2025