Lynyrd Skynyrd wrote the book on Southern rock with their first album, so it only made sense that they followed it for their second album, aptly titled Second Helping. Sticking with producer Al Kooper (who, after all, discovered them), the group turned out a record that replicated all the strengths of the original, but was a little tighter and a little more professional. It also revealed that the band, under the direction of songwriter Ronnie Van Zant, was developing a truly original voice. Of course, the band had already developed their own musical voice, but it was enhanced considerably by Van Zant's writing, which was at turns plainly poetic, surprisingly clever, and always revealing. Though Second Helping isn't as hard a rock record as Pronounced, it's the songs that make the record…