LDT - the solution is simple. You need a new melodeon - ideally, a Hohner Liliput, which fits neatly alongside a concertina, into a bag you can get from Theo Gibb. I got one from TG at Whitby last year, and then used the foam and velcro dviders from an old camera bag to protect each box from the other. There's even room for a rolled up cagoule on top before you do up the zip. If you want to see pics, PM me either here or on Melnet and I'll ping over some jpegs.