...or not capable of travelling to and from London theatre's to work on such an intensive project these days"
This may be true 
ps. But apparently someone saw him at David Gilmour concerts
A project like a musical would be an intensive daily workload though.
Not really, unless he's asked for new songs, the songs are already there and Guy is his musical director, there is really no need of MK doing anything further than, as mentioned before, writing new songs or just see how it's going that would be a day or two, and the rest of work is for Guy, as happened in Chichester. Guy was there in rehearsals and during all previews shows, MK only went once or twice, apart of the opening day for press.
