yes you can use Sequel content sets in Cubase 7. Content sets have both MIDI and Audio loops. Something that Steinberg could improve on, is listing what is actually in the sets before you buy them. Information like what kinds of loops and how many would be useful. And yes, you get a license key for an eLicenser for each set, but you can only have them on one key at a time. Steinberg seem to think that it is a minor inconvenience to have to unplug/plug the eLicenser if you are using more than one computer to, say one for Sequel and one for Cubase. I have two eLicensers, one with Sequel stuff and the other with Cubase. If I want to use the Sequel content sets in Cubase, I have to either plug both eLicensers into the one PC, or move the licenses across eLiceners. For content sets worth USD$14.99, eLicenser protection is pretty 'over protective' in my view.