The music that first was popular inthe early 1900's is called "Ragtime" describing the appearance for the first time of a syncopated style that blends European music with African folk music. It received a big boost when featured in the movie "The Sting" and those compositions of Scott Joplin are classics of today.
For physical events that happen at a specific time. For example a concert, or dance performance. If there are multiple shows, you can still duplicate your event to cover them all.