This takes minimalism to the next level. A vinyl record with just one sine tone. You can change the pitch of the tone yourself by switching from 33.3 rpm (a tone of, indeed, 33.3 Hz) to 45 rpm.
So why play a record like this? Each needle and each tone arm will sound different, and it will shake the whole building when you turn up the volume. Read more about WOW and order one of the records (priced at €33.33) on wow.heavylistening.com