Note:   Halfway done (unfinished , approximately 3 minutes 50 seconds.   By halfway done, I mean half is going to be replaced.  You composers know what I’m talking about.  In the meantime, I strongly suggest you check out Caroline M. Breece’s works.  If that isn’t enough (it really is, but I know you google-holics), her husband, Michael G. Breece will take care of the rest. 

Addendum:  There will be exactly four toy piano works.  This is not a sonata, not in sonata-form.  You can Youtube for a full symphony of the toy piano.  Although you might find, as I did, bad luck in hearing the unfortunate toy piano above the symphony.  Impressive work, nonetheless, and a wonder to watch a pianist contort him/herself into a sort of cartoonish pose, which must be extremely uncomfortable.