Hi Toril
Just been reading your interesting post about lessons/PSR 51,I remember when I first got my Technics KN2000 keyboard many years ago,somewhile after I bought a Yamaha PSR 410 and the voices/styles were so much better on the Technics,much more expensive of course.At first I learnt the usual chords in C,F and G keys and as I bought new music books,mostly 101 Hits for Buskers,all of which I still have and use,I noticed that many of the songs were written in keys I did not know ie.Ab,Bb,Eb and D to name a few.
I decided that I needed to learn these new chords and to play in these strange looking key signatures,and that is what I did.I can fully recommend learning other keys than the usual C, F and G ,tunes seem to take on a new flavour using these new keys and chord textures. Please let us have an update to this post about how you are getting on learning new key signatures,and also using your PSR 51
Best wishes
Alan