I just search “free tunes” and found some. The threads that have links in them you have to type" legacy." at the beginning of the address to get them to work. id
EDIT: almost forgot you have to get rid of the error stuff in the middle to here is a example.
I should realized that was for FM2 , if I recall correctly there was a page like that for FM3 and obviously FM2 but now that I think about it there was’nt for FM4. If you search “open source” you should find quite a few tunes in the FM4 section.
I know Craviator , Reaper Mech and ECT loco( loco also re-posted them a few threads down on here) had some threads with a couple of pages of tunes, plus there are a lot of others strung out in the TM pages.
sorry about my bonehead mistake its been a while since I used the legacy forms.