Lekha Dodi (Hebrew: לכה דודי)[a] is a Hebrew-language Jewish liturgical song recited Friday at dusk, usually at sundown, in synagogue to welcome the Sabbath prior to the evening services.
This is clear not only from internal evidence, but also from the rubric in old siddurim directing the hymn "to be sung to the melody of Shuvi Nafshi li-Menukhayekhi, a composition of Judah Halevi, who died nearly five centuries before Alkabetz.
The better known of these is an air, reserved for the Omer weeks between Passover and Shavuot, which has been variously described, because of certain of its phrases, as an adaptation of the famous political song "Lillibullero" and of the cavatina in the beginning of Mozart's "Nozze di Figaro."
Less widely utilized in the present day is the special air traditional for the "Three Weeks" preceding Tisha b'Av, although this is characterized by much tender charm absent from the melody of Eli Tziyyon, which more often takes its place.
But it was once very generally sung in the northern congregations of Europe; and a variant was chosen by Benedetto Marcello for his rendition of Psalm 19 in his "Estro Poetico-Armonico" or "Parafrasi Sopra li Salmi" (Venice, 1724), where it is quoted as an air of the German Jews.