N'ọnwa Julaị afọ 2005, onye na-ede akwụkwọ na Palmer Theological Seminary dị na Wynnewood, Pennsylvania, hụrụ ihe odide Beethoven nke 1826 nke akpọrọ "Grande Tugue [sic] à quatre mains". Dr. Jeffrey Kallberg na Mahadum Pennsylvania na Dr. Stephen Roe, onye isi nke ngalaba Sotheby's Manuscript kwadoro akwụkwọ edemede ahụ. Nke a bụ ndokwa piano aka anọ nke Große Fuge, Op. 134. Akwụkwọ edemede ahụ furu efu ruo afọ 115. Sotheby's Auction House rere ya na 1 Disemba 2005.
Ụlọ Akwụkwọ Nkà Mmụta Okpukpe nke Palmer dị na Wynnewood, Pennsylvania