An old post (2006 I think) was seeking Progressive Hymns.
Occasional postings can be found at: http://hymnsandbooks.blogspot.com/
I have also published Whatever Name or Creed (135 hymns) and Reclaiming Praise (150 hymns) both Stainer & Bell Ltd., (via Hope Publishing in the US). Many of these are Progressive in nature.
I continue to write and am willing to write to commission (inspiration permitting!)
I’ve recently had an article on Progressive Hymns accepted for publication for a Handbook on Progressive Christianity to be published soon by Polebridge.