“And Miriam answered them ‘Sing to Hashem for very exalted is He’ ” (Shemos 15:21).

Chazal state that in Gan Eden there’s a special chamber where the song of Miriam continues to be sung. What was so unique about Miram’s song as opposed to Moshe’s?

To understand one must appreciate the avodah of women.

The pasuk in Devarim (31:19) refers to the Torah as a shirah. While men continue the chain of mesorah through limud women maintain Miriam’s tradition of Torah through song.