Reger had an acrimonious relationship with Rudolf Louis, the music critic of the "Münchener Neueste Nachrichten", who usually had negative opinions of his compositions. After the first performance of the Sinfonietta in A major, Op. 90, on 2 February 1906, Louis wrote a typically negative review on 7 February. Reger wrote back to him: ""Ich sitze in dem kleinsten Zimmer in meinem Hause. Ich habe Ihre Kritik vor mir. Im nächsten Augenblick wird sie hinter mir sein!"" ("I am sitting in the smallest room of my house. I have your review before me. In a moment it will be behind me!"). Another source has the German composer Sigfrid Karg-Elert as the targeted critic of this letter.