Thank you both for taking the time to give such detailed and informative answers to a complete novice.
It sounds like music with chord bass and melodies is not the way to go. I have fallen in love with the sound, though, there’s plenty of scope for simpler harmony so I’m certainly going to stick with it.
Yesterday, I worked out how to play Tender by Blur and it’s sounding great. Never more than four notes at once, not too widely spaced on the keyboard. More importantly, it really suits the tone of the instrument. I think I like it better than on my guitar.
Any other beginner tune suggestions would be appreciated but thanks already for all you help Steven and Lowboy!