Carl Heinrich Zöllner (born Oleśnica, Poland; 1792 – 1836) was a German composer.
He is mainly remembered for one surviving work: the opera Kunz von Kaufungen, which premiered at the Theater an der Wien in March 1826.
An organ work, Variations pour l'Orgue sur le Theme God Save the King also survives, as well as two shorter organ works, Ziemlich Langsam and Andante.
I guess those are the two in the reording.
On IMSLP they are labeled:
Andante and Andantino.
Nice and gently flowing music imho.