7631304|String Quartet No. 6 in B-Flat Major, Op. 18 - String Quartet No. 6 in B-Flat Major, Op. 18: I. Allegro con brio|213622|Bartók Quartet|697947|Beethoven: String Quartets, Op. 18, Nos. 4-6|6642625|415|1|1|0|16605936|6642625|7|0|0|0|9361496|9956922|0|000Hf6Vl2ry75r|003cnY6q0SLAU8|003xLG6s2J3AR2