Hi there
Sorry for taking so long to reply! And thanks to all of you - George, Jon, Stephen, Art and Simon - for listening and saying such kind things.
As you know I am practically clueless in technical matters, and the result I got here is based entirely on effects copied straight off some combi's on the triton.
I had 2 big problems with this: first, getting the output from the triton arps to record in PT - took a while to figure out !!, and secondly, getting the main piano melody to be heard over all the other instruments. To me it sounds on the verge of distorting, especially at the beginning.
The only thing I know about recording audio is that it mustn't go into the red

in the mixer window. So....I think I need to learn about how to set all the recording levels correctly in the first place.
There seem to be 4 places where levels can be set.
1) The Triton main volume slider (which I tried to set as close to max, as advised by Jon)
2) the volume setting for the instrument track in the Triton's Seq
3) the 2 input knobs on the mbox (which I had on zero)
4) the volume slider for the audio track in PT - which I had set to 0dB.
I ended up bringing down (2) if there was clipping.
I'm sure this is all wrong, apart from what I did with (1).
Then after recording an audio track for each midi, I fiddled with all the faders and had a great time adjusting the volume levels with my favourite PT tool - the Grabber tool!! This in itself was Wowieland for me - SO much better than fiddling about with rows and rows of numbers on the Triton.
Sorry this is so long, but I would appreciate some help on those levels, so I can perhaps re-record the audio tracks.
Thanks again for all your support and encouragement,
Regards from
Dee