She was one of the early composers of synthesizer music. I remember a beautiful piece she performed for Hearts of Space using a Tibetan gong....for years I played it on an old tape until it finally stopped working. I also remember standing in the stairwell of Kroeber Hall, where the art and anthro departments at U.C. B. was, while Joanna recorded me singing to the echoes of the building. It ended up in a piece of music, and it was ghostly to hear my own voice from so long ago within the album.
I was delighted to learn that Joanna's music has been re-released, and she will be doing concerts again, among them in Paris this summer.