Music by Levik Loshchak.
Based on the Chassidic discourse "Kimei Tzeischa" 5712
Likutei Torah, parshas Tzav 16d
and on, Shaar HaEmunah of the Mittler Rebbe ch. 52
and on, and the Chassidic Discourse "Az Yashir" printed in Sefer HaMaamarim 5670, pg 415.
See also the additional commentary