A good way to test it is to see if there's a torrent download
or other d/l available.

Is this thing on www.distrowatch?

I have seen a couple Linuxes crop up just lately... one, after
all the hype was over with, wasn't worth the plastic it was
burnt to.

One hopes that this DSL Linux is Debian based since Debian
has the easiest upgrade path.

Lastly, what are the advantages of a dsl Linux? The setup
of any dsl through PPPoE was pretty easy, even for me.

And back to the audio topic, have you seen DeMudi by Agnula?
DeMudi stands for Debian Music Distribution and features
most everything for musicians and audiophiles in the Linux
world.