Today we’re going to migrate the AcousticBrainz service from its standalone server that we’ve rented in the past few years to our shared infrastructure at Hetzner. We’ve been prepping for this move for a few weeks now and the actual process to follow has been used before, so we don’t expect the downtime to be more than 1 hour.
We’re sorry for the downtime that will be coming — to keep up with what we’re doing, please follow our progress on Twitter. We hope to start the migration in the next hour or two from when this blog post goes up.
MetaBrainz Blog 
Alas, we need to postpone this until tomorrow. Sorry for the false start!