In iOS6 and before, you could double-press the home button then swipe the bar of running apps right to get to music controls and an icon for the app last playing (or currently playing) music. This was very convenient to quickly get into Pandora/Slacker/Spotify/Beats/whatever and thumbs up or down a song.
In iOS8 (and 7 I'm told although I skipped it), it seems the only way to reach the app last playing is to scroll through the obscenely widely spaced full screen images of running apps and guess the one you think was last playing.
Is there any simple way to get to the app last playing or currently playing music?