The main features of Traditional Jazz are the unscripted ensemble work, the unwritten but generally acknowledged rhythms that may be used, and the defined roles of the instruments.
"The longer the band has been playing together the closer the harmony in the ensemble work" is a good maxim to judge a Traditional band by; strings of solos generally indicate that the musicians do not either play together very often or that they do not have much confidence in each other. Another good way to judge the quality of a Trad band is to listen to, and perhaps even time, the same tune played on different occasions; if the band is good no two versions should be the same.
In addition to the 2/4 rhythm Traditional bands also generally play stomps, rags, and marches. Whilst stride and boogie woogie played by the pianist as a solo passes without much comment the use of some of the rolling Creole rhythms are frequently frowned upon.
Traditional Jazz style is known by many different names - New Orleans Jazz, Dixieland Jazz, or simply Jazz Bands.
The trumpeters I have picked for this era are:
Click on the name to learn more.