Do you have the 'Lotus' Live in Japan set?
It was recorded on the Caravanserai tour in 1973 and released on vinyl as a 3 disc set in 1974,
so it slots in between Caravanserai and Welcome,
Here's disc 1, side A:
From there you can get to the rest.
... was probably a huge influence on the live sound of the Santana
ensemble in 1973.