From one harpmaker to another, many happy returns harpmaker. By the way, what is the best filler to use? I've been to Ray's Auto World, but I find that most don't take the creosote as well as the surrounding mdf and some of my harps look a bit blotchy. Also, where do you get all those little metal gismos that make the harp change key? I currently make harps in G, A, C and D, but charging £400 for a set of four, puts some people off. Particularly those who want to join in in sessions. Hope you can help.