Coming next week, from Toccata, performed by Ensemble Burletta. The composition dates here (1935, 1950, and 1977) would normally automatically exclude consideration here, but as Gál has been discussed before.....?! ;) ::)
https://www.amazon.com/Hans-Gál-Chamber-Music-Clarinet/dp/B01LB2P1OU/ref=sr_1_313?s=music&ie=UTF8&qid=1475895001&sr=1-313&refinements=p_n_date%3A1249114011 (https://www.amazon.com/Hans-G%C3%A1l-Chamber-Music-Clarinet/dp/B01LB2P1OU/ref=sr_1_313?s=music&ie=UTF8&qid=1475895001&sr=1-313&refinements=p_n_date%3A1249114011)
(https://dl.dropboxusercontent.com/u/8220758/Unsung%20Composer%20pix%20-%20leave%20in%20place/71ZBJxIkeUL._SL1200_.jpg)
As is the norm for Toccata lately, you can stream it all on thier site:
https://toccataclassics.com/product/hans-gal-chamber-music-clarinet/
Obviously modern (though not harshly so), not really in the remit here.
As with much of Gal's music, we're on the fuzzy outer edge of our remit here.