Every update from the original iOS 8 update has been an improvement. That's generally how it works. A brand new iOS update comes out, usually with at least a few minor issues, and each update after that squashes bugs.
Might be different with the iOS 8.3, since new features (mostly for the watch and Photos) will be introduced, but the current iOS 8.1.3 update is recommended for everyone except jailbreakers.
Try the update. If the problem persists lets continue from there.
Please provide additional information such as how you are getting the music onto the iPad (iTunes on a computer or directly from the iTunes store on the iPad, or other means). Whether all the music is from the iTunes Store, or some of it ripped into iTunes (or other method). Anything else about how you do your music that might be relevant.
Can't promise a solution, of course, but the more information the more likely someone will recognize a possible problem.