Here's another approach visitors may want to consider.
My wife and I rent an apartment for a month every year in Bs As in Aug-Sep, to get away from the Texas heat. We love music and dance performances but dread touristy places.
We always try to catch several shows at the Borges Cultural Center, in the same building as Galerķas Pacifico. A couple of examples: One year we saw Anoche, Un baile de Tango, and last year we were wowed by Nicole Nau & Luis Pereyra in El color de mi baile with music by Horacio Banegas. There's no dinner (the Borges just has regular auditoriums), but for that we walk over to El Establo afterwards.
We have never been disappointed by a concert at the Borges, and we've never seen any tourists there.