A minority interest I know, but Danacord have issued two CDs of songs by Emil Hartmann, the son of JPE. Details and soundbites at jpc here (http://www.jpc.de/jpcng/SESSIONID/b592729d901b118b27511f137ca19de4/classic/detail/-/art/Emil-Hartmann-Nordische-Deutsche-Lieder/hnum/4966744). Most are rather pretty.