Good to note: Lists of repertoire are often featured in music-related journals & magazines. Search Music Index and IIMP using the subject "bibliography" to locate repertoire for a specific instrument or ensemble. Example: horn bibliography

Brüchle, Bernhard. Horn Bibliographie. Mus Lib Ref  ML128.H67 B8.

Chambers, James. Orchestral Excerpts from the Symphonic Repertoire for French Horn. Mus Lib Stacks MT426 .O7 1965 v. 2-5

Horn: Sammlung wichtiger Passagen aus der Opern- und Konzertliteratur. French Horn: Excerpts from the Operatic and Concert Repertoire (Orchester-Probespiel = Test Pieces for Orchestral Auditions). Mus Lib Ref MT426 .H6 1992

Horn Excerpts from Standard Orchestral Repertoire. Belwin Mills, Pub. Mus Lib Stacks  MT426 .H67 1970z

Pottag, Max. French Horn Passages. Mus Lib Stacks  M80.P6 F743 vol. 1-3

Baron, John H. Chamber Music: A Research & Information Guide. Mus Lib Ref  ML128.C4 B37 2010

Lindeman, Stephan D. Concerto: A Research & Information Guide. Mus Lib Ref  ML128.C84 L56 2006

Anderson, Mark J. A Sourcebook of Nineteenth-Century American Sacred Music for Brass Instruments Mus Lib Ref  ML933 .A53 1997

Fasman, Mark J. Brass Bibliography: Sources on the History, Literature, Pedagogy, Performance, and Acoustics of Brass Instruments. Mus Lib Ref  ML128.B7 F3 1990

Rangel-Ribeiro/Markel. Chamber Music: An International Guide to Works and Their Instrumentation. Mus Lib Ref  ML128.C4 R3 1993

Scott, William. A Conductor's Repertory of Chamber Music: Compositions for Nine to Fifteen Solo Instruments. Mus Lib Ref  ML128.C4 S37 1993