To me, Mothership brings to mind Stanley Clarke's lyrics: Hail Space Warriors...We have weapons and vessels, but I choose the sound of the plucked string.; whereupon, Stan the Man rips it up on his -- you guessed it -- Alembic.
Of course, the reference to the Alembic factory in Santa Rosa has a more earthly connotation. Still, it conjures images of the Magic Hippies practicing their alchemy, turning wood into gold.