Was there a "Ragtime revival" trend in early 1970s rock?

Listening to the 1970s channel on Sirius a while back, I noticed that quite a few songs from the early years of that decade have a very distinctive ragtime-y sound - specifically, a tinkling piano-kind of sound. Was there really a ragtime revival during the era, much like the swing influence in some popular music in the late 1990s?