 Joseph Joachim, who in his time in Weimar had found Liszt's workshop rehearsals and the trial-and-error process practiced in them to be wearisome, was dismayed at what he considered their lack of creativity.Vienna music critic Eduard Hanslick found even the term "Sinfonische Dichtung" contradictory and offensive; he wrote against them with vehemence after he had heard only one, "Les préludes".Surgeon Theodor Billroth, who was also a musical friend of Brahms, wrote of them, "This morning [Brahms] and Kirchner played the "Symphonic Poems" (sic) of Liszt on two pianos ... music of hell, and can't even be called music—toilet paper music!