Local composer and conductor John Partridge will give a lecture on “The History and Significance of Ragtime” at the Sonoma Valley Regional Library at 6 p.m. on Wednesday, Oct. 10. The presentation is in conjunction with the Wine Country Ragtime Festival.

Ragtime is a uniquely American type of music that took the world by storm in the 1890s.

“Ragtime is a living musical form with new rags being written all of the time,” said Partridge. Partridge will accompany his talk with slides and musical examples on the piano. He will also show the influence ragtime had on many other kinds of popular music.

“This presentation will be a great introduction to prepare people for the Wine County Ragtime Festival that starts the following weekend,” said Partridge.

The event is free. The library is located at 755 W. Napa St.