Music player

MusicPlayer.m

MPMusicPlayerController *controller = [MPMusicPlayerController iPodMusicPlayer];

MPMediaPropertyPredicate *artistPredicate = [MPMediaPropertyPredicate predicateWithValue:@"The Killers"
                                 forProperty:MPMediaItemPropertyArtist
                              comparisonType:MPMediaPredicateComparisonContains];

MPMediaQuery *query = [[MPMediaQuery alloc] initWithFilterPredicates:[NSSet setWithArray:@[artistPredicate]]];

for (MPMediaItem *song in query.items) {
    NSString *songTitle = [song valueForProperty: MPMediaItemPropertyTitle];
    NSLog(@"Song title %@", songTitle);
}

[controller setQueueWithQuery:query];
[controller play];