Bartók, B.MikrokosmosChris Breemer
Bartók, B.String Quartet No. 2Borromeo String Quartet
Bartók, B.Sonata for Violin and Piano No. 2Jonathan Biss
Beethoven, L. van15 Variations with Fugue "Eroica-Variationen"Katherine Chi
Bach, J.S.Goldberg VariationsGlenn Gould
For Bartók there are a lot of catalogs - often started by Bartók himself. Besides Sz (=Szöllösy) and BB there are also Opus numbers. However, none of them covers everything.