Jon Lord, the former keyboard player with heavy rock band Deep Purple, has died aged 71.

BBC: Deep Purple's Jon Lord dies at 71

You can't be a banjo player in a rock 'n' roll group.

BBC: Looking back at the birth of The Beatles

The 2004 collaboration between Apple Computer and the rock band U2 for the iPod MP3 music player.

FORBES: Magazine Article

The 2004 collaboration between Apple Computer (nasdaq: AAPL - news - people ) and the rock band U2 for the iPod MP3 music player.

FORBES: Sell Old!

Ray Manzarek, keyboard player and founder member of the 60s rock band The Doors, has died aged 74.

BBC: Doors co-founder Ray Manzarek dies at 74 in Germany

Mr. Stills was already an extraordinary acoustic-guitar player, and his increasingly fierce electric guitar would push CSN toward rock without the group abandoning its unparalleled vocal blend.

WSJ: Carry On, Stephen Stills | By Jim Fusilli