turns out the problem is related to the height of the player. How can I reduce the image? Set at the default height, the image is twice as large as I would like it to be.
But...phooey - now, at the conclusion of play, a promotion comes on leading people off my site, out to soundcloud, to play other people's music. So I need to live without the comments, I'm afraid - that follow-on playlist (coming from soundcloud, not your plugin) is completely and utterly unacceptable. [I have written to Soundcloud to protest this supposed 'feature.']