I remember this guy from when I was based at Oval Theatre with the Pink Project. Graeae (a disabled theatre company) came and did a fabulous production of Orton's What the Butler Saw and we were all having a bit of a chat after the show. He commented at the time that being a disabled actor then (in 1998) was a bit like being a gay actor had been 15 years previously - lots of new opportunities.
And now he's written a musical. I think it sounds great. Maybe I can catch it on tour.