Dave - maybe for your exact reasons we SHOULDN'T try to maintain consistency. I think it's because of Alembic's variations in woods and filters that it would be just fine to showcase whatever people want to record.
I don't have any web-space. Maybe someone can volunteer for that. Collect MP3s or wavs and convert to MP3s, whatever people decide is best. Record whatever you please. If we want to be really good about it, write down various settings or notations of playing style, and post them. Or not. I'd love to just hear people noodling around.
The main point would be to collect the Alembic sound in various humble non-Pro forms in one place for people to hear.
EffClef