Any hiphop MC can get bored working with the same producer over and over, even if that beatmaker happens to be the great DJ Premier. Everyone can do with a change, so it's understandable that Guru sought a different collaborator for Version 7.0: The Street Scriptures. The puzzling bit is why he'd settle for the corny chipmunk funk loops of Solar when any number of creative young producers on their way up would be delighted to have their tracks blessed with his tight rhymes. Even Kanye West knows that the sped-up vocal sample shtick is as played out as his sherbet-hued wardrobe. It just spoils an otherwise perfectly half-arsed effort by an aging rap star clinging to past glory.