Features include the ability to search and browse by artist, album or track, create playlists and download music from Cloud Player to the device for offline playback.

ENGADGET: Amazon brings Cloud Player music service to the UK: choice of free or premium tiers from ?22 per year

Features include the ability to search and browse by artist, album or track, create playlists and download music from Cloud Player to the iPhone or iPod Touch for offline playback.

ENGADGET: Amazon brings Cloud Player music service to the UK: choice of free or premium tiers from ?22 per year

In 2010, DC Comics sued the brother and sister of Shuster, the artist responsible for Superman, on the basis that they relinquished their ability to reclaim the superhero's copyrights in exchange for annual pension payments from DC Comics.

BBC: Warner Bros retains all rights to Superman

Some of the functionality which the company claims was copied by Apple includes using a menu selection process to select music, the ability to search and sort music based on the genre, artist, and album, and transferring music from a library to a portable music player.

ENGADGET: Apple settles iTunes interface lawsuit

The complete Slacker Radio experience includes more than 200 expert-curated music stations, customizable programming from ABC News, comedy, custom artist-hosted showcase stations and leading music festival stations along with the ability for listeners to create their own personalized radio stations from a music catalog that is more than 10 times larger than Pandora.

ENGADGET: Slacker now streaming six ESPN stations, Radio and Deportes amongst them

Xbox Music makes music simple by offering immediate and comprehensive discovery across the different types of devices you own, free streaming1 music on Windows 8 tablets and PCs, the ability to purchase songs and albums, a compelling music subscription, and artist-based radio.

ENGADGET: Xbox Music heads to Xbox 360 first tomorrow, PC / tablets on Oct. 26, WP8 soon after; we go hands-on