I think you have to be very careful when talking about the bands of 90’s grunge. They are bands that came out during the time from Seattle and other places, but are more alternative rock than anything else. Grunge was an attitude, not necessarily a style of play. Nirvana, Pearl Jam, Mother Love Bone, The Melvins, The Screaming Trees, etc are real grunge bands. What they were able to do to a changing culture was truly amazing to watch. They just didn’t care about the norm and what was acceptable.