The protagonist, Philip, who was born with a club foot, moved in with his uncle Mr. Carey, the Vicar of Blackstable after his mother's death.
He came to Paris to become a painter.
...........................
In the Rue Taitbout were the Concerts Rouge, where for seventy-five centimes they could
hear excellent music and get into the bargain
something which
it was quite possible
to drink: the seats were uncomfortable, the place was crowded, the air thick with caporal horrible to breathe, but in their young enthusiasm they were indifferent.
[Of Human Bondage by Somerset Maugham]I'd like to know if "it" refers to "to drink something."
Thank you in advance for your help