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: flute AND bibliography

Pellerite, James J.  Handbook of Literature for the Flute. Music Library Ref & Stacks  ML128.F7 P4 1978

 Pellerite, James J. A Handbook of Literature for the Flute: Compilation of Graded Method Materials, Solos, and Ensemble Music for Flutes. Music Library Ref & Stacks ML128.F7 P4 1978

 Pierreuse, Bernard. Flute littérature: catalogue général des oeuvres éditées et inédites par formations instrumentales. Flute Literature: General Catalog of Published and Unpublished Works by Instrumental Category. Music Library Ref ML128.F7 P5 1982

 Toff, Nancy. The Flute Book: A Complete Guide for Students and Performers. Music Library Stacks ML935 .T65 2012  

 Vester, Frans. Flute Repertoire Catalogue: 10,000 Titles.  Music Library Ref & Stacks ML128.F7 V48

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

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

Peters, Harry. The Literature of the Woodwind Quintet. Mus Lib Ref ML128.C4 P5

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

Secrist-Schmedes, Barbera. Wind Chamber Music : Winds with Piano and Woodwind Quintets : An Annotated Guide. Mus Lib Stacks  ML128.C4 S43 1996