John McVie used Alembics in the studio before he entered bankrupcy. John Entwhistle used one as well. Jimmy Johnson is a long time user of Alembics, and although the labels he has been recorded on may not be major, the results certainly are, (as well as minor, disnonant, diminished, augmented, etc.). Cliff Burton used an Alembic briefly as well before his untimely death. And let us not forget Stan the Man Clarke!