Many magazines publish reviews of classical recordings. A good way to find reviews for specific compositions is to use an index. Index to CD and Record Reviews, 1987-1997. 1999 Start with the composer index in volume 3. Look up your composer and then the specific work you've chosen.
Type hol to see which specific issues the library has.
Don't forget that the periodical indexes mentioned above are also good sources for reviews. MAGS will automatically tell you whether UCSB has a specific periodical, and if so, which issues and the call number. Then submit your search. IIMP Use the All Keywords box, but before clicking the Search button, scroll down and type recording review in the Document Type box. MIO Use the Basic search option.