August Freyer

Karol August Freyer (15 December 1801 – 28 May 1883) was a Polish musician and composer, specializing in both performance and composition on the organ.

[2] He made a tour of northern Germany as an organist, from which he received wide acclaim.

He promoted Hesse's music to Mikhail Glinka, successful in his performance to the point of reducing his listener to tears.

[3] In addition to the aforementioned German concerts, he toured Paris to an enthusiastic reception.

[6] His most famous composition was a set of Concert Variations of which the final-movement fugue is the most recognized.