1806 was one of the most creative and eventful years in Beethoven's life. It was the year of major works such as the Fourth Piano Concerto, the Violin Concerto, the three "Razumovsky" Quartets and the Leonore III Overture. It is also the year when the musician finally admitted evidence of his deafness and vowed to no longer make it a secret. Beethoven spent part of the summer of 1806 in the palace of Count Franz von Oppersdorff. During his stay, he noticed how much his host, a great music lover, appreciated his Symphony No. 2, still composed under Haydn's influence. Commissioned by Count von Oppersdorf, Beethoven's Fourth Symphony in B flat major was premiered in March 1807 at a private concert in Vienna sponsored by Prince Lobkowitz. The work's "retrograde" allure and its entertaining character have led to a certain amount of criticism. The composer did, in fact, himself acknowledge the "unbuttoned" nature of his work. Hector Berlioz, a great admirer of Beethoven's music, had boundless admiration for the Fourth Symphony. According to the French composer, the Adagio of the Symphony Op. 60 "surpasses anything the imagination could ever dream of in terms of tenderness and pure voluptuousness". The brief Finale has a carefree and swirling lightness, but beware of speeding! Through the accentuations he took care to mark in the score, Beethoven clearly indicated that he wanted to give this movement the necessary weight to balance the whole symphony.