I realise the HX Stomp has much more than you need but it is a very good option that'll do exactly what you are after and there is also huge potential in it should you need it in the future. I had 'scenes' for each song that I simply moved through as per the set. I used a fraction of it's spec, slight variations in EQ, and amp models, very subtle effects here and there. What I'm saying is don't rule it out because it can do loads of things you don't currently need when it will do exactly what you want now extremely well. Also it is great fun to just muck about with and you have lots of users/experts on here who are willing to help out when/if you get stuck with something.