User talk:WD0UG

There is an error on this page: https://en.wikipedia.org/wiki/List_of_aerophones_by_Hornbostel%E2%80%93Sachs_number A duplicate number is shown for: 421.221.31 Without fingerholes 421.221.31 With fingerholes. One of them needs to be corrected. WD0UG (talk) 11:12, 20 September 2015 (UTC)