As part of Terra Nova Collective's "Forgotten Composers" series, Etcetera records has released some of Ryelandt's chamber music, including:
Oboe Sonatina, Op. 28 (1899)
Fantaisie For Clarinet, Op. 40 (1904)
Horn Sonata, Op.18 (1897)
Cello Sonata No. 1, Op. 22 (1898)
Three Pieces For Clarinet, Op. 17 (1897)
Listen below for samples:
https://www.amazon.com/Ryelandt-Romantic-fin-si%C3%A8cle-Bruges/dp/B0875SS55B (https://www.amazon.com/Ryelandt-Romantic-fin-si%C3%A8cle-Bruges/dp/B0875SS55B)
Three Pieces for Clarinet is particularly attractive and my favorite, especially the Romance. It provides a lovely atmosphere.
Not entirely, to nitpick :) The horn sonata was on a Phaedra CD in 2010 (#65 in their In flanders fields series), together with a work of his called Summer evening (Zomeravond) and works by Waelput (a symphony of whose we've heard, I think) and others. Also, the oboe sonatina was on a 1992 "CERA" CD set. But they don't seem over-recorded :)! (Though hopefully the Toccata Classics series will continue too.)
Thanks, Eric! I modified my post.