Provolone (sharp/piquant), aged for a minimum of four months and with a very sharp taste, to "provolone dolce" (sweet) with a very mild taste. In "provolone piccante", the distinctive piquant taste is produced with lipase (enzyme) derived from goat. The "Dolce" version uses calf's lipase instead. Both "provolone valpadana" and "provolone del Monaco "(from the Naples area of Italy) have received the DOP (Protected Designation of Origin) seal from the European Union, meaning no country other than Italy may legally produce a cheese called that. In Brazil, Argentina, Bolivia and Uruguay, small discs of locally produced pulled-curd provolone of in diameter
What Is and What Should Never Be descending riff [of "What Is and What Should Never Be"] is amazing: It's like a bow is being drawn back, and then it releases. The rhythm of the vocals is almost like a rap. It's insane — one of their most psychedelic songs." This was also one of the first songs recorded by the band for which Robert Plant received writing credit. According to rock journalist Stephen Davis, the author of the Led Zeppelin biography "Hammer of the Gods: The Led Zeppelin Saga", the lyrics for this song reflect a romance Plant had with his wife's younger sister. "What Is