[Dixielandjazz] Dixieland v. Trad Jazz

[Jim Allen]

I had occasion to get in a conversation with another community bandsman
recently after he overheard me mentioning something about Dixieland.

He wanted to know if I was really into Dixieland or more trad jazz, Turk
Murphy,  a style he mentioned, etc.

Before this I had considered these terms virtual synonyms, never worried
about any difference.  A google search turns up discussion but no clear
demarcation, to me anyway.

Is there?  What constitutes Dixieland as opposed or contrasted to Trad
jazz, if there is a difference?

Best

Jim Allen