A poem written specifically for the bride on the way to her marital chamber is called what?

Epithalamium was originally among the Greeks a song in praise of bride and bridegroom, sung by a number of boys and girls at the door of the nuptial chamber. Later, it was developed into a special literary form, and received considerable cultivation. Sappho, Anacreon, Stesichorus and Pindar are all regarded as masters of the species.