Looks like we are following in the footsteps of others. This is an interesting thread:
https://www.diyaudio.com/community/threads/dont-listen-to-records-on-fm.359025/
There are links to two different tonearm geometries playing a solo piano in post #2. Please watch those videos before reading the whole thread, and especially before looking at the other links or further down to post #14 where the geometries are shown. The difference is huge, even to my ear.