Rabbi Yehuda HaLevi glorifies the beauty of Shabbat in this poem, in which its lyrics has transcended the entire Jewish world. Many Moroccan Jews have the custom to sing this song on any given Shabbat, but more specifically on Shabbat Parashat Mishpatim, since it is found in the Bakashot of that week. Nevertheless, you will find the lyrics printed in many books of piyutim.
The maqam is Hijaz el Kbir.
At the end of the recording I sing the tune to the words of Shavat Aniyim but it will also fit in any quatrain lyrics.