Who has the record for the fastest harmonica playing?

As of my last update, the record for the fastest harmonica playing is held by Larry Adler, who played "Flight of the Bumblebee" at an astonishing speed of 3.5 seconds. However, records in this category can be subject to change, so it's advisable to check the latest updates from reliable record-keeping organizations like Guinness World Records for the most current information.