Santana RamosPrimary SourcesTchaikovsky, Pyotr I. "Letter 4931." Tchaikovsky Research. N.p., 22 Aug. 2013. Web. 05 Jan. 2015. . A letter written by Tchaikovsky in May of 1893, the year considered to be his peak. The letter displays his stress and sort of unhappiness in having to travel so far and for so long."Wolfgang Amadeus Mozart." Tchaikovsky Research. N.p., 3 Aug. 2013. Web. 05 Jan. 2015..Contains secondary source information on Mozart, but, more importantly, information on Mozart, a composer who was a big influence to Tchaikovsky. Secondary SourcesPoznansky, Alexander. "Tchaikovsky: A Life." Tchaikovsky Research. N.p., 19 Oct. 2013. Web. 05 Jan. 2015..A lengthy piece that describes Tchaikovsky and the events of his life in detail, from birth to death. Helps clarify the timeline of his life and the events that shaped him into the successful, yet tortured man that he was.