Suomynona.My books aren't the latest . One says 27 29 the other 28 31. In a demonsration some are as low as 20 up to 24. If I am going to try to copy with all the actions and movement at 27 which is the lowest set. I haven't got a chance. Take for instance if the lady raises her leg above her head on 4 and down on 1. Which would you prefer the low 20's or the high 20's. I just looked up our Dancesport Rule Book. It says 27 for the Rumba. Looking at the Waltz we have 30. a demonstrator would dance this at 28 bars a minute. I just had a look at my Richard Gleave tape in his demo before the teaching, 28. A two bar difference might not seem much, but it is if we are hoping to get the correct rise and fall Just for the record here we have. Cha 30. Samba 50. Rumba 27. Paso 62. Jive 44. It is not uncommon to catch a Cha on 32. To get back to my original point which is, If we are to copy the best dancers in the world we need to dance to the same tempo that they do. One more thing, in Latin if the music is too fast the first thing that goes is the movement of the hips. So I am told.