You may wish to look at the music scores by John Cage as part of your research, and can use Classical Scores Library to do so.
Click here to view how to search Classical Scores Library. More information on how to access this database from the library portal is given below.
Click on the 'Databases' tab.
Type Classical Scores Library in the search box on the page 'Search within Databases'..
At the Appropriate Use of E-Resources Licensed by NUS Libraries page, check the box after reading the information and click on 'NUS Staff/Student/CFS'.
Next, sign in using NUS-ID and password and proceed with your search.
You will see the Classical Scores Library home page. In the search box, type 'John Cage' and click .at the magnifying glass.
It is possible that you may not find his music scores as they may not have not been digitised.