Like in the chapel, there are statues here, but instead of the cold, dead, praying ancestors of the chapel, these are much more lively, "ever eager-eyed" angels, staring down ("Star'd" here is a poetic way of writing "stared") and carved with their hair blown back. As you probably figured, the angels aren't actually staring and the music isn't actually "chiding" (teasing or correcting)—that's just Keats throwing down some handy-dandy anthropomorphism. While anthropomorphism generally just means "non-human things doing human stuff," here you specifically have artistic creations taking on human agency.
We in any event our Beadsman is very brave, now: as he leaves the sanctuary o' unpleasant statues, he's welcomed with music—Music, really—which has a brilliant tongue. (Music doesn't generally have a tongue obviously, so we get more embodiments here.) After the sub zero, noiseless church with its "dark, purgatorial rails," brilliant tongues sound truly great to …show more content…
As you presumably figured, the heavenly attendants aren't really gazing and the music isn't really "rebuking" (prodding or rectifying) — that is simply Keats tossing down some helpful dandy humanoid attribution. While humanoid attribution by and large just signifies "non-human things doing human stuff," here you particularly have aesthetic manifestations going up against human