Remember

One of the most famous dead musicians today is Kurt Cobain. Sure, many artists have died, but Kurt Cobain was one of the only musicians to have died well before his time. Besides this, it is rare that a person that rose to the level of fame he did would kill himself. He always seemed suicidal, but always kept on denying it. Because of the circumstances surrounding his death, he will always be remembered and revered.
It's not hard to remember a person like Kurt Cobain. There are millions (a bit of an exaggeration) of biographies about him and Nirvana. Of course the best way to remember a musician is by his music. Nirvana made 3 albums before Kurt died. Those albums have sold millions of copies and songs are still occasionally played today. In this way, his legacy will live on for many years to come. Beyond the studio albums, a few live albums have been released, and i imagine a few more will continue to come out in years to come. Since Nirvana are a band that are completely done after Kurt's death, EVERY single song recording has been released that Kurt ever played on. Demo tapes, different song takes, different mixes, it's all been released. I doubt there's more than a couple songs that still haven't been released. What I find funny is that half of the songs have atrocious quality, released for those die-hard fans.
Other musicians also aid in the remembrance of a person like Kurt Cobain. Artists heavily influenced by Kurt released tribute songs that have to do with his death.