There's an official instrumental of Rock and Roll, yeah. The OSC "drums" instrumental is actually drums, bass, and keyboards, it's a backing track that was on a CD that came with a guitar magazine, with the guitar music in the magazine, so guitar players could play along to a backing track. The people at the magazine recorded it though. There's one version of State of the Art, and that's the radio version. The Edited version was made by a fan who goes by the name DJ Ravok. He looped the verse instrumental part and used it as an intro, and did some editing to remove the radio ads that were inserted in the song. A lot of people think it's the album version, but it isn't. Lethal recently mentioned that his solo album will be coming out at some point, so the real album version will be around eventually, but it's unknown when. As for Freestyle, the album version is the rip from Vice's actual mixtape, which has some rewinded parts in the song (similar to how some songs on the Fort Minor mixtape are). The remix is an edited version without the rewinds, which was the first version posted on the Forfeit The Game website. The demo version is on DJ Vice's Myspace, which doesn't have scratching in the outro like the other 2 do. 4 GT 10 was on a Chali 2na mixtape called Fish Market, it's the same song as Frgt/10 on Reanimation, except it has a different ending where the music stops and it goes into a skit of somebody beatboxing.