Although Nirvana was on a major label at the release of Nevermind the situation was different than most bands on a major label.
If you listen to the interview off the box set, you will find out that Nirvana had a different circumstance, they could eaither take a guaranteed sum of money (like 750,000 bucks) and not have much freedom in what they can play, or they would receive a certain percent of there records sold and maintain almost all freedom of what they could play.
In my opinion Nirvana played whatever the hell they wanted to until the end, although Kurt may have been unhappy with In Utero's mixing,the fact they played what they wanted still applies.
I see Bleach as a great album, but it's obvious it is far more elementary than there other releases. Nirvana's distorted guitars and kurt's style of singing can really cover up songs at times, songs that cold really be looked at as pop.
In Utero, on the other hand, is far darker than Nevermind.
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