Sparky's Magic Piano

I remember this piece of early Electronic music and thus began a lifelong affinity for the genre, it really got me hooked. A marvellous story about a child and his magic piano wit some very early vocoder effects really stuck with me, I am now in my very late fifties and still rate this piece, it really spoke to me as a child and I loved it to bits. I wonder if anyone knows who performed this piece and when it was performed?