The Velvet Forum

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

the Rosedale Cortina seems like a generic 60s chord organ, which would be melodica/accordion type sound:
here is someone playing one nicely:
https://youtu.be/oXm7hMGEegw