Understanding classical can be difficult and takes patience. While you may become familiar with a popular track the 2nd or 3rd time you listen to it, most WCM works take dozens of repeated listening sessions to acquire basic familiarity.
The length of many WCM works is another issue. You can’t just spend 5 minutes listening, enjoying, and moving on; most works range between 25 to 45 minutes.
Enjoying popular music typically involves consciously listening to the vocals, while enjoying the instrumentation only during the interludes. Listening to multiple things at once doesn’t come easily, and can be overwhelming"