Hi and welcome,
I don't really know if this is read, indeed. At least, it's still online 
Short answer : I won't grab from modland to feed AMP. It may sound weird but that's an old policy. Give me real sources (those art packs you're referring to for example), please. Replicating other's work by considering it is correct at face value is the best way to spread mistakes - if demoscene "history" taught us anything.
I'll keep this topic on my TO LOOK FOR list 
Sylvain
Alright well I found one of the two..
http://artscene.textfiles.com/acid/ARTPACKS/1993/The pack is acdu0493.zip and there is a loader exe in there CP-ROSE1.EXE - the rose garden .STM format (scream tracker 2.0) file is from that, so it would have to be ripped. It sounds better in the loader than any other player I've played it in, not sure which is correct lol
Might be interesting to check all the packs from 92/93/94/95 and see if there are rippable songs in EXEs..
There are also plenty of songs in diskmags, like:
http://artscene.textfiles.com/emags/1993/adren-1.zip has songs by Piano Man and The Blue Adept, which are 2 musicians not on AMP
Then again, none of this stuff is THAT great.. I'm not sure if you're really trying to get everything or have quality control

. But it's all very nostalgic for me..