A piyyuṭ sung by the Jews of Algiers on Shavu’ot and Simḥat Torah (and by some Moroccans for baqashot on Parashat Toldot). Yayin Tov Ratov is a love song from the perspective of God that uses a lot of language from Song of Songs. Wine and song, in this case, are both metaphors for the Torah. Of unknown origin, the acrostic spells out the name יצחק, although I can confirm that it wasn’t me who wrote it.