Pesah 3 - Letzur Goalenu - פסח 3 לצור גואלנו
This song has two versions to it; French and Spanish. The French sing it like the song "El Eretz Azuva" found in Bakashot Vayehi, "Asader Tushbahta" on Sukkot and "Hachamai Uzkenai" on Shavuot. The Spanish have a more traditional melody to it and they also apply it to the above songs.
Here are both versions.