"Spem in Alium" is the most beautiful piece of music in existence for me: https://www.youtube.com/watch?v=iT-ZAAi4UQQ
At 40 distinct melodies, it is certainly the 'grandest' piece in early English church music.
At 40 distinct melodies, it is certainly the 'grandest' piece in early English church music.
But it definitely suffers from every one of the reasons for obscurity listed in TFA, on steroids.