I was finding a lot of volume adjusting when playing along with my MP3 tracks. So I tried the MP3Gain to get the tracks to around the same level. I still thought them a bit low so i boosted them. Then someone on the forum said something about clipping so quick check shows that virtually all my tracks show a tick in the clip column. So that's a bad thing, I think. I was more worried about not being loud enough but now I'm thinking I'll have to review and drop the levels. Old dogs new tricks.