To avoid boredom with classical music, buy several discs of the same piece. Brahms and Tchaikovsky violin concertos are a good place to start.
An interesting feature of classical music is that you can find many recordings of some of the great pieces, and compare the style of various performers. The variation of interpretations is remarkable, and I am talking of performances which all are good, by highly regarded musicians. For example: I have five or six recordings of the Tchaikovsky violin concerto, and while I don't have time to listen to all of them at one sitting, I do enjoy playing just one movement several times as played by different artists, and reflecting on the different interpretations. This approach will open up another dimension to your musical experience.
An interesting feature of classical music is that you can find many recordings of some of the great pieces, and compare the style of various performers. The variation of interpretations is remarkable, and I am talking of performances which all are good, by highly regarded musicians. For example: I have five or six recordings of the Tchaikovsky violin concerto, and while I don't have time to listen to all of them at one sitting, I do enjoy playing just one movement several times as played by different artists, and reflecting on the different interpretations. This approach will open up another dimension to your musical experience.