Just some notes: sadly, I'm not going to get to meet her this time around either. She has a website with videos and a biography, which says she learned in the traditional way, and that's how she teaches.
Sadly, again, there are few videos of her on YouTube. Jantango filmed her in Lo de Celia, but it's during a milonga, so not always clear. There are several demonstration milongas. I posted about her before here and Ampster, who was lucky enough to take classes with her, records her advice on posture here. The best milonga ever filmed (but perhaps not the best film of a milonga) is on Jantango's blog: there's a link to it in this post. Muma dancing with Ricardo Vidort... and Gavito also on the floor.
After Maria Plazaola teaching in boots, here's Muma teaching bare-foot in Vancouver... But I think the best is this video with 'El Flaco' Dany. Unfortunately, the pixelation is eye-watering. Despite El Flaco running all around her she seems completely unhurried, completely cool. I think it also shows the grounded quality of local dance, which continues to remind me of canyengue: the weight comes down firmly, it's a beautiful, down-to-earth dance, and yet her feet are wonderfully fast and accurate. There's something of a dream-like quality in her dance. Beautiful.