Reger wrote opus 135a near the end of his life.
The small pieces it contains are often used and played by organ students; they are compact and much easier than almost anything of his other organ works
Beginners stuff? Not really.
In these 30 small pieces, hardly more than hymn settings, he was at his best.
There are three of them in this upload.
Each piece is (imho) an exquisite jewel.
In the first the solo voice with the tremulant make for a heartbreaking song.
The second is played on soft stops of the three manuals combined with use of the two swellboxes.
The third is a song of joy on loud stops.
00:00 # 01
Ach bleib mit deiner Gnade.
01:30 # 14
Liebster Jesu, wir sind hier.
03:10 # 10
Es ist das Heil uns kommen her.
Front: 80 Rear: 100