This delightful rondo is the work of Fredrick Zinos. My contribution was simply to make a recording using the Garritan Personal Orchestra, and with the approval of Mr. Zinos, to upload and publicize the work. I like the piece very much, and think it well worth a listen. The recording was made using a Sibelius Scorch score, and GPO Studio record function.
There is no mp3 directly associated with this score on the Sibelius site. The free Scorch plug-in is required in order to view the score. I think Zinos is offering this free. His scores, while quite legible, are not quite on a par with his compositional skills.
Well, he does not have GPO, and now and then, when I spot something of his, I do a GPO version because I think his music is quite good. It is an easy job if there are 8 or less slots required, because his input to Sibelius is pretty good concerning expression. I will forward all comments to him.