Hi, Mario... I do not see on that page where it says "this will work with the free version of MSoundFactory" (or the "Player").
It shows (at the top) "Instruments for MSoundFactoryPlayer".
There are 3 versions of the MSoundFactoryPlayer - Full, LE, and Player.
https://www.meldaproduction.com/MSoundFactoryPlayerLike Kontact. If you do not have the full version (of Kontact), there are a lot of free instruments that you cannot use...
Now... on the piano page
https://www.meldaproduction.com/MonasteryGrandit does say...
"...Yes, it's totally free! All you have to do is to download it and install within MSoundFactory virtual instrument (which has its free version too)."
But nowhere does it specifically state "The MonasteryGrand only requires the Player version of MSoundFactoryPlayer" (unless I'm missing that statement).
So...I'm still wondering.
I might download it to play around with it - if I can install it on my "junk computer" which is not connected to the internet. But downloading 6 GIG takes a long time....