Ptolemaïs of Cyrene, the ancient philosopher, and what she can teach us about the art of music. — Learning to Play At the moment, I’m endeavouring to improve my rudimentary jazz piano playing. It’s a long process: I’ve played on and off for years, without really getting any better. So this year, now I’ve been reunited with my keyboard, I’ve been trying to put some more time in, hoping that I…