Thank you Nigel!
Makes my 40-something heart beat afresh - uncanny ability at such a young age - and reminds me of the seemingly unbelievable (at the time!) stories surrounding a 14-year-old Steve Vai (and his mum, if the rumours are correct) trying to persuade Frank Zappa to take him on tour in the late 70s-80s (I think this is right . . ? . . .)
Apparently Frank wouldn't allow it til Steve was 16 - bummer. . . . .