With the full spectrum of recorded music instantly available to us now, it was inevitable that the celestial jukebox would begin to fold in on itself. Many of these mashups, sample collages, and corporate Muzak homunculi are predictably not on Spotify; copyright law hasn’t caught up to this style of meta-music. The ADHD megamixes of Girl Talk and manic pop collisions of Mochipet are still jaw-dropping - and while much of this stuff is highly ironized, “Come Down To Us” is samplework at its most achingly sincere.