nloftofan. Google USA Dancesport Rules . To find your way you might need to be familiar with computers. It is there and on page 7 you should find Tempi.In case you cant here it is for the International Style. Waltz 28 to 30. Tango 31-33.
V, Waltz 58-60. Slow Foxtrot 28-30. Quickstep 50-52. Samba 50-52. Cha 30-32.
Rumba 25-27. Paso Doble 60-61. Jive 42-44. You will find that those times are world wide. The tempo for all of the American Style are there also
About bands. I find that they have n't a clue, They cant dance and yet here they are playing for dancers. What seems to happen if there is a vocalist they play to suit the singer. That usually means that it is too fast and in many cases too slow. If its just right it is by accident. Good luck with your attemt to reform or should I say reformation. By the way the above is in bars and not beats. In bars per minute as above is exactly as it is on the USA Dancesport site. I've put that in just incase anybody thinks I have done a conversion.

If you would like to see the tempi in beats per minute, they are listed on this website under the general information about each dance.