It isn't a festival. You said Brazilian Soul had classes in Bulimba (which they do). If you go to their website you will see that they also hold classes at Wellington Point on Thursdays.
http://www.braziliansouldance.com/classes/thursday/new-beginners-class-redlands. The times and dances are misleading, unless things have changed in the last few months. They were doing zouk and samba de gafiera at 7pm and Bolero and Solthino at 8pm..
They aren't showing their Ipswich classes. Perhaps they no longer do them.
