hendrik on 01 Apr, 2019 10:00 AM
beaTunes first tries to find songs that match a specific ruleset, in this case the one named default with a match quality of at least 50%. Then it filters the results according to the additional filters you set (i.e. danceability).
The failure probably occurs in the first step and not the second as you assumed.
Try using a different match rule set (they are configurable in the preferences) and lowering the match quality.