This is how I managed it...
go to settings> music and turn off itunes match
go back to you music (itunes on the device) and browse by album, find the album you no longer want, in my case Christmas music, swipe from left to right and the <red> delete will appear, delete the album.
when your done getting rid if the dodgy stuff.... turn itunes match back on, it will re-sync and the stuff you deleted will no longer be there, if your not sure whats on the phone/pad go to settings>music>show all music to OFF go back to your itunes and it will only show whats been downloaded to the phone/pad
I find ITM quite good the key to it is PLAYLISTS make them and D/L them to your device, that way you still get access to all your music if needed but with the D/L playlists you get your Top Tunes with you all the time
I have my stuff, my wife has her's and never the twian shall meet! (well only in the cloud.....and if I really have to listen to it.....)
hope this helps, may I also say that re-affirming the same problem over and over again does not solve the problem.... just makes finding the solution more difficult.... :/
FlipSide