I've added non-integer tempo as a feature request, id# 4993
Wow, what does it take to get the other dozen Feature Requests in this thread along into the FR database?

The entire thread is being watched, as we are focusing on UI improvements. The non-integer tempo request isn't a chordsheet UI thing (what this thread is specifically for), so I added it as it would likely be missed otherwise.
There's a method to my madness. Sometimes. Very rarely really.