There is a known issue where the audio within Pulse can sometimes stop processing after a period of extended play. We are attempting to find the cause of this issue.
If this occurs to you, please let us know which type of device (e.g. iPad Pro 9.7), which operating system (e.g. iOS 10.2), and when the issue occurred (e.g. when returning to the menu after 'Brazil Chills').
The work around for this issue is to force close the Mogees Pulse app, and open it again.