Exactly the case, Peter! Thank you very much ... it is of course always a good idea to look in the right place if you want to find something smile

In fact, having noted your words it was instantly clear tjust from looking at the Mixer that that was the reason. There was an arbitrary extra track/instrument present thatI had not added myself, and once I had pointed the notation utility to it I was presented with a forest of crotchets and quavers and all their variations which, when I have done very little for it other than tap-in a rhythm, is SO impressive.

I assume that I can replace that instrument with a different sound/voice too just as with other tracks? It is a held sound that muddies-up a couple of staccato passages.

But in any case, it is always nice when a problem has a simple cause and even simpler remedy smile

Thanks again!