| Dave Jasen was an American pianist, musicologist, and author who specialized in ragtime music. He was known for his extensive knowledge and research on early American popular music, particularly ragtime and its composers. Jasen also performed as a ragtime pianist and recorded several albums showcasing the genre. He authored numerous books on the subject, including "Rags and Ragtime: A Musical History" which is considered a definitive work on the topic. His contributions have significantly helped in preserving and promoting the legacy of ragtime music. |