I am having trouble finding the licensing for the demos

[hwpplayer1]

Thank you for releasing Furnace as free software! I was recently
reviewing it for entry into the Free Software Directory (FSD),
but I am having trouble finding the licensing for the demos
(/furnace-0.6.7/demos). The README says "these demo songs are not
under the GPL. all rights are reserved to the original author(s)", but
I can't find the licensing information that would grant users the
rights to copy and/or distribute the demos. Unfortunately, without the
licensing information, the FSD would have to consider them nonfree and
Furnace would not be eligible for entry. Is there something I am
missing? Does the licensing information exist somewhere and I am
missing it?