I agree. Of course, people around here do tend to line up a partner during the cortina, but with quite a few of us, it's accepted that the agreement is conditional to both people being ok with the music. However, it is harder to get ot of the tanda if it's the combination of partner & music that bugs rather than just not wanting to dance to that music at all. I find that over time, it gets a little easier to anticipate what the next tanda might be, or at least what is it unlikely to be. It's unlikely to be the same as the tanda that just ended. This is especially true when the tanda was similar to the one prior to that. If the DJ favors a certain thing, you might notice it's been awhile since some other certain thing was played, increasing the chances that it will be that. Around here we also sometimes work a "dance card" system (without actual cards) where people agree to save the next _____ for each other, especially when very little of that gets played. The bottom line is that not every tanda is going to be ideal. I've learned to accept it as just one tanda of one evening and there will be many more. I also spend more time at "practilongas" now where everything is more relaxed.