2.Quartet No.22 in B flat,K 589 Quartet No.12 in B flat,K 172 Quartet No.6 in B flat,K 159 Quartet No.11 in E flat,K 171 Quartet no. 2 in B flat major Piano quartet No. 2 in E flat, K493 Concerto No.22 in E flat,K 482 String quartet no. 12 in E flat, op. 127 String Quartet No.22 in B flat major,K.589 String Quartet No.12 in E flat,Op.127