music." Early versions of the song opened with the line, "Don't talk to me about the rights of the IRA, UDA". After Bono had reworked the lyrics, the band recorded the song. The opening drum pattern soon developed into the song's hook. A local violinist, Steve Wickham, approached the Edge one morning at a bus stop and asked if U2 had any need for a violin on their next album. In the studio for only half a day, Wickham's electric violin became the final instrumental contribution to the song. During the sessions for "Sunday Bloody Sunday", Lillywhite encouraged drummer Larry Mullen, Jr. to use a click track, but Mullen was firmly against the idea. A chance meeting with Andy Newmark (of Sly & the Family Stone) – a drummer who used a click track religiously – changed Mullen's mind. Mullen used the click track to stay in time for other songs on the album. Mullen said of the album in a 1983 interview, "I think the drumming has always been pretty simple, I don't think it needs to be flashy. For War I use a click track, something I haven't used before, it's a way of keeping time in my headphones. When I listened to the music in time with the click track I knew I had to bring it down to the real basics. Hopefully for the next LP it will be more complicated, I'll move on. I think of it as a musical progression for myself because I learned a lot recording this album, just about my own style and that's what I wanted to do. I think there is a definite style on War where there isn't on the previous albums." Three of the tracks featured backing vocals by the Coconuts, of Kid Creole and the Coconuts. In the words of Steve Lillywhite, "they just happened to be in Dublin on tour, so we hung out with them and they came in and sang on 'Surrender'. So it was sort of random – this serious Irish rock band having the Coconuts on their album." The studio version of "40" was recorded during the final hours of the recording sessions in November 1982. Bassist Adam Clayton had already left the studio, and the three remaining band members decided they did not have a good song to end the album. Bono, the Edge, and Mullen Jr. quickly recorded the