Sonata in E minor,K 304,300c Sonata in E minor,K.304(300c) Sonata in A minor,K 310,300d Sonata in E minor, K. 304 (300c) Sonata in E minor K. 304 (300c) Sonata in A minor, K310/300d Sonata in A minor, K.310 Sonata in A minor, KV 310 Sonata in E minor,K.304 Sonata in A minor, D537