I had my preferences set to 10 posts per page which made Soundy think I had multiple instances per page which is clearly forbidden in the documentation, although a more explicit warning about this might be nice. Setting the preference to 1 post per page fixed the problem.
My thanks to the plugin’s author for his quick response. This is an excellent plugin and suits my needs well, specifically having a way to let the reader turn off the background music.
MIke
