The Symphony No. 2, which was mostly written in the summer of 1872, represents a breakthrough in Bruckner’s conception of the symphony. Although Bruckner had been composing sonata-form movements with three distinct themes since he began writing symphonies in 1862, in 1872 he greatly expanded the scope of their presentation and development, and established the framework, which he would use consistently in all of his subsequent symphonic work. Moreover, the Adagio of this symphony is in ABA′B′A″ "Lied" form followed by a coda – the framework which Bruckner would use in his subsequent symphonic work, with exception of the Sixth.