I've lost my keyboard adapter. In fact, I fear I may have thrown it out by accident. When we were moving house, I just tossed it into a bag of old socks, which was then thrown under my bed and forgotten. I can't remember if I ever took that adapter out (probably not, as I last used my keyboard yonks ago), but during a massive cleanout I had recently, I'm pretty sure that bag wound up straight in the bin.

Actually, it could be in my wardrobe somewhere. I may have taken it out of the bag and then shoved it in a box somewhere. I hope this is the case, because I'd love to learn how to play keyboard, as well.