General Admission refers to patrons who have not purchased a membership.
Jazz Standard / Student applies to patrons who have purchased a Jazz Standard Membership and show this card on entry or to students who show their student card on entry.
Duke Duchess applies to those who have purchased a Duke/Duchess membership and show this card on entry.
Table restricted view refers to a few table places which have sight line issues across the grand piano, but allow seated table entry.
More detail about memberships can be found here.