The blessings of the sh'ma begin with Umavir Yom: Umavir Yom

Hashkiveinu follows Mi Chamocha and leads into V'shamru: Hashkiveinu

Reciting the Sh'ma on Shabbat: Sh'ma

Yismachu Hashamayim, at the end of Shiru L'Adonai (Psalm 96) is often repeated with this niggun: Yismachu Hashamayim

Next in Ma'ariv is Ki Haim Chayeinu: Ki Haim Chayeinu

A different niggun for Ki Haim Chayeinu: Ki Haim Chayeinu 2

Barchu, which begins the Ma'ariv service: Barchu

Adonai Malach Ge'ut Laveish, or Psalm 93, a slow and haunting niggun: Adonai Malach Ge'ut Laveish

Mi Kamocha, a beautiful niggun celebrating the power of Hashem: Mi Kamocha

Another, more traditional, version of Tzadik Katamar: Tzadik Katamar