Share your experience!
Hi, I have noticed that, in my "Walkman" app, whenever I play in both modes ( Loudspeaker and headset), there is a time that the music stops a bit (in about 0.1 sec estimately :P). The "stop" can be compared to a scratched disk played in a DVD player.
Why is it like that? Thanks for answering! 
Try settings-apps-all-walkman,clear data for both apps.Restart the device.Check if that occurs again.