Here is a classic from Pink Floyd's "Dark Side of the Moon" (1973) album titled "Money". You get to hear Nick Mason lay down a simple, yet tasteful 7/4 groove. The song eventually warps into a 4/4 groove but the first half is in 7. I have also attached a "simplified" notation for those that do not like to read triplets with rests. Just keep in mind that the the eighth notes are "swung" in the simplified version.