from Wikipedia:
Alfred Grünfeld (* July 4, 1852 in Prague; † January 4, 1924 in Vienna) was an Austrian pianist, composer and music educator.
Alfred Grünfeld was the son of a leather merchant. He received his first music lessons at the age of four.
Alfred Grünfeld studied under Josef Krejčí at the Prague Conservatory and under Theodor Kullak and J. T. Hoyer at the **Neue Akademie der Tonkunst'' in Berlin. In 1873 he went to Vienna, where he earned the title of "chamber virtuoso" and served as a professor at the New Vienna Conservatory there. He undertook numerous concert tours through Europe and the USA. He is best known for his concert paraphrases of Strauss waltzes. Johann Strauss (son) dedicated his ''Frühlingsstimmenwalzer'' Op. 410 to him, and Strauss usually gave Grünfeld the handwritten scores of his new compositions, asking him to play them for him as they were written, to hear how they sounded.
The best known is probably his concert paraphrase on Johann Strauss waltz motifs "Soirée de Vienne", Op. 56, which is still performed in concert halls today and demands a great deal of dexterity from the pianist due to the magnificent virtuoso ornamentation of the work.
He rests in a grave of honor at the Vienna Central Cemetery (group 32 C, number 2).
Note: Translated from the German version of Wikipedia into English.
