Whilst the E-mu SP machines are most famous for their use in Hip-hop, they were used by numerous artists in different genres and in different ways. To that end, I thought it would be interesting look at why and how it was used on Joe Satriani's 1987 album "Surfing with the alien". A note - I am aware that playing Joe Satriani songs on an Ibanez JEM is like doing a video about Spider-Man whilst dressed as Batman, but the JEM is the guitar I have.