You can miss it. The BIG doors.
57th
I was just there. There are 3 performance places. The entrance on 57th Street closest to 7th avenue is for Stern hall, the biggest, six doors East is for Weill recital hall. The entrance for the third one is on 7th Ave, but it is several stories below grade
I believe 57th st
Thanks! Your answer is awaiting moderation.