Love the question! This was recorded at the Open Stage . There are some pics showing at the right side of the stage (from audience perspective) a piano. One is clearly showing Cale playing it (Adam Ritchie)
The next month they moved to LA and John got the fancy Vox Continental.
You can see Nico playing a little piano(?) in MacMaster University ( reproduced in The Inevitable pag 107)
We should do some work trying to identify the instruments... always guess the Thunder Machine was used
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