In November a concert took place in Erfurt to honour the 150th aniversary of the birth of Richard Wetz. The Ensemble Ad Astra, a very fine a cappella choir, conducted by Lukas Tobias Sommer, performed some pieces by Wetz, among them his "Vier geistliche Gesänge" op. 44, which is in reality a sort of Missa Brevis (consisting of Kyrie, Incarnatus, Crucifixus and Agnus Dei).
Now a CD recording with a selection of Wetz's a cappella music, sung by Ensemble Ad Astra, and the Passacaglia and Fuge op. 55 for organ, played by Kilian Homburg, was published by the label Querstand:
https://vkjk.de/cds/richard-wetz.html
Together with this project the publisher Klaus-Jürgen Kamprad has produced a documentary about Wetz that can be viewed on Youtube (in German):
https://www.youtube.com/watch?v=95_Ew5DlEzs