Following on from IanC and Nigels remarks, I strikes me that in some cases it might be appropriate to disentangle several threads from a single DTStudy thread once it is edited. For example, I could see some cases where we ended up with a 'song' thread, a 'historical background' thread and 'common stories' about the song, such as the "Peasant's Revolt" comment in the Cutty Wren song. In no way am I suggesting this should be the norm, but occasionally it might be helpful. Much more work for the editor, unfortunately.