Thank you so much for all your very fast answers, brilliant, not to sure though about 1C in an octave, if there are 8 notes starting with a C isn't there a C at the end, which would make 2 Cs. (I think!)
Evening bookwormer
don't know if this helps or hinders or just plain rubbish !!
The UF series ranges from 49-88 keys and is the most powerful multi function master keyboard in the World ???
xx