Have had my Nexus5 a month now.
Observed this problem on Spotify and now Google Play.
Some songs, maybe 20-30%, will not lead to audio output.
The time counter and progress bar move as if they're playing, but no sound.
If you skip back to beginning of song they play just fine.
This is only issue I've had with phone so far and would hate to return it for something so trivial.
Does this seem hardware, app or kitkat related?
All the songs are stored on-device, downloaded from the respective music services.
Thanks for any ideas.
Love the Nex5 otherwise.