The UNT Libraries currently use the Library of Congress system to classify the books in our collections. 

The Library of Congress system uses both letters of the alphabet plus numbers to classify books.  Classification causes books on similar topics to be together on the shelves.

For most fields, the letters in call numbers have nothing to do with the names of the topics in question.  Music is one of very few exceptions.

The two kinds of call numbers for music books are ML and MT.  ML stands for music literature, while MT stands for music theory or music teaching.

Most books on music history topics have ML call numbers. Many general books on music history and music history books by historical period can be found from call numbers ML160-ML200. Biographies of classical composers can be found under call number ML410.

Please note:  Call numbers beginning with the letter M by itself are for music scores. 

The call numbers assigned to our CDs are local numbers we created here.  They begin with LPCD.  These numbers do not classify CDs; rather, the next CD we add to our collection gets the next LPCD number.

Most of our journals do not have call numbers.  Instead print journals are shelved in alphabetical order by journal title.

Significant Music History Series