The library provides electronic access to articles from many newspapers across the country and the world. They are a great place to find reviews of musical concerts, recordings, and events, giving you a perspective from the time they happened.
Search varied sources in Discover for reviews including newspapers, magazines, trade journals and academic journals. This is a huge databases of many many sources, so use limits in the left toolbar, and be specific in your keywords (try using the word "review" in your search terms, put the name of specific recordings or songs or albums in quotations).
Search the library catalog only (enter search terms and then limit) or dozens of databases together. A great place to start your research on almost any topic.