The legend of Nirvana has always demanded that the band be viewed as a sea change in popular taste -- the meaningless but oft-rehashed factoid that Nevermind knocked Michael Jackson's Dangerous off the top spot on the album chart, as if sales turnover didn't exist until Kurt Cobain came along.

Here's a rundown of the essential albums available online and in record stores today:

Nirvana fans ticked-off about Kurt Cobain's unlockable avatar in Guitar Hero 5, which, frighteningly, allows the Nirvana deity to sing Bon Jovi and Bush songs, may have a target for their wrath.

It's one of those days when we need Courtney Love's Twitter translator on retainer. The Hole frontwoman is raving mad about the depiction of her deceased husband, Kurt Cobain, in the new version of Activision's popular Guitar Hero franchise, and she's threatening to sue.

Here's the strangest music news to hit the Internet this week:

Gwar vocalist/bassist/intergalactic barbarian Oderus Urungus picks his favorite websites -- and gives midget porn its official spokesmonster! [Urlesque]