Sorry for repeating something I posted recently. Here is the "orchestra" for the AG Revue.
And here's two sparkle keyboards providing music for CATS!
I also bought the sparkle guitar but haven't found a use for it yet, since the bagpipe/rock band I had in mind lost its leader.
I have one keyboard that works and one that doesn't. If you do a lot of stories about musicians, which I used to do, then the keyboard is great. It's much more portable than the piano and it has a more modern "ambience" to it? I could see using it in a sci fi story as well as modern ones, although Tsuki would prefer a Vulcan harp.
The music it makes is a little tinny, but I'm not a fan of any of the varieties offered anyway so I generally leave the batteries out. Be aware, if you're going to give it to a child, that the volume is louder than you may enjoy after the first few minutes!