In addition to the Music Library's print music holdings, there are other online resources for musical scores that may include works featuring the double bass.
In addition to scores of musical works featuring the double bass (found in call number areas outlined within the Overview tab), orchestral studies and excerpts for the double bass are available in the Music Library (in call number area MT 331).
Benfield, Warren, ed. 20th Century Orchestra Studies for Double Bass.
MT 331 .B46
Zimmerman, Fred, ed. Orchestral Excerpts from the Symphonic Repertoire for String Bass.
MT 331 .O64 1964
Zimmerman, Oscar, ed. The Complete Double Bass Parts: Nine Symphonies and Leonore No. 3 Overture [by] Beethoven.
MT 331 .B42 1970
Zimmerman, Oscar, ed. The Complete Double Bass Parts: Orchestral Works of Brahms.
MT 331 .B82 1971
Zimmerman, Oscar, ed. The Complete Double Bass Parts: Selected Works of Joh. Seb. Bach.
MT 331 .B12
Zimmerman, Oscar, ed. The Complete Double Bass Parts: Selected Works of Mozart, Haydn and Weber.
MT 331 .C75 1970
Zimmerman, Oscar, ed. The Complete Double Bass Parts: Strauss Tone Poems.
MT 331 .S92 S9 1972
Zimmerman, Oscar, ed. The Complete Double Bass Parts of Selected Romantic Symphonies.
MT 331 .C74
Zimmerman, Oscar, ed. The Complete Double Bass Parts of Selected Symphonies of Mendelssohn, Schubert and Schumann.
MT 331 .Z72
Zimmerman, Oscar, ed. The Complete Double Bass Parts of Thirty-Six Overtures.
MT 331 .C745 1971
Zimmerman, Oscar, ed. Orchestral Studies from Operas and Concert Works for String Bass: Wagner.
MT 331 .W13 1956