Sorry, the songs aren’t available just yet on iTunes.
It’s a boring story, but in order to get them out today, I would have had to tick the “iTunes Direct” box on the upload. Since I didn’t do that, the songs will take 3-5 weeks from upload. They were uploaded on 15th March so this means sometime in the 2nd or 3rd week of April. And I can’t go back and fix this for reasons that are too tedious to even explain.
Apologies for raising false hopes, they really will be out in April. And next time I’ll know how it works so will get the release date right…