RE Vic Smith's question:
>Is there anyone that can add to my list of Leader releases?

You should consult the Musical Traditions discography here:

http://www.mustrad.org.uk/discos/lea_txt3.htm#leader

Just bear in mind that the leading number in each catalogue number is set not to display (visually), for better flow, such that e.g. LEA 4001 displays without the "4", and so on (however if you do a copy-and paste the full numbers come through).

My understanding is that this is a complete list, although I also know that sometimes Musical Traditions omits releases it considers "contemporary" or "revival" - but not sure it does in this case - hope it helps. Regards - Tony