F> I think that what he was saying is not that the =individual songs=
 F> are "standards", but rather just the =categories=.  Certain works
 F> are very popular in SF such as Star Trek, Tolkien.  So if you are
 F> planning to try to take requests by subject, these are the subjects
 F> he believes will come up most often.  (And even if it is not a
 F> request per se, very often a sing will be looking for "followers" -
 F> songs on the same topic.  One might hear 6 Star Trek songs in a row
 F> before someone changes the topic.)

Thank you very much for your well thought out reply.  I did not understand
what the original author was driving at.