In many ways central to Tolkien's "subcreative" cosmology, the Ainulindalë gives an account of the Ainur, a class of angelic beings, who perform a great music prefiguring the creation of the material universe (Eä).
Dalam banyak hal hasil karya Tolkien "subcreative" kosmologi, Ainulindalë memberikan account dari Ainur, kelas makhluk malaikat, yang melakukan musik besar prefiguring penciptaan alam semesta material (Eä).