[Zubersoft]

If you need a proper numeric sort order, about the only thing you could do is go to the song title formatting dialog, add tempo as the first part of the song title, check the option to sort based on the formatted title, then on the songs tab, change the sort to "Numerically" at the the top, and then filter by genre using the genre dropdown. If you need to have the search results sorted by tempo and genre, you'd have to probably put tempo and then genre as the first parts of the song title.  If you need to filter on a specific tempo, you could use the search field for that, but if you need a range of tempos, that would be harder.

If you put tempo into the Custom field, you could also sort on Custom (which does a numeric sort as well). That would prevent the need to modify the song title formatting. 

Can you provide an example of the kind of filter you are looking for?

Mike