As has been pointed out before, an online forum is not a replacement for real legal expertise, but I think this is clear that PG music has stated you can use these as you wish as long as you don't infringe on someone else's copyright, such as cover songs. You need permission to record those and as you know it is not that hard to obtain for most music. Some artists are very protective of their work as is their right, but most songs are available for licensing through the various entities that do that.

My wife asked if I had seen the dog bowl. I told her I didn't even know he could.