We need some Riffs for guitar and bass from some of the my favorite older rock bands, the classics. Rush, Queen, The Who, Led Zeppilin, stuff long that line. Rush you would need songs like Temples of Syrinx and Tom Sawyer, Queen you would need Bohemian Rhapsody, Another One Bites the Dust, almost any Queen song would be good. You just need the real hits that got rock to where it is today.