I’m very late to the party with this one, but just in case you haven’t seen it yet I thought it worth a plug.
Tomlin Leckie, in addition to being an excellent harmonica teacher, running an online school, posting prolifically on YouTube and running the Edinburgh Harmonica Workshop has started a podcast in which chats for an hour or so with various luminaries of the harmonica world.
To date he’s featured Will Wilde, Roly Platt, Ronnie Shellist, Lee Sankey, Liam Ward, David Barrett and Joe Filisko. Can’t ask for better than that. Essential listening.