For those interested, within the last commit to guitarix git I've added
a file browser to the guitarix LiveLooper (dubber) on request, so now
you could load your preferred wav/ogg files into guitarix, loop them,
and play along. You could save your loops as plugin presets to reload
them to your needs.
For those who didn't know about the dubber, it's a 4 channel looper with
a max loop range from ~1.5 min. (Longer files will be cut at this point.)
Have fun with it
hermann