Hi all, I'm thinking of buying a POD HD 500x, but want to know a little bit more about the capabilities it has. Sorry if these are dumb questions - I haven't been able to find answers anywhere else. Does the POD HD500x have any backing tracks to play/practice with? It seems that the HD500 does not - but I haven't seen if the 500x includes these. Is there any way I can input a mic and apply the POD 500x's effects/looping to it? Thanks!