Despite the composer's intentions stated prior to his death, there remains much argument as to what form this composition might have taken, had Tchaikovsky continued to work on the other movements. The matter revolves around two remaining movements from the unfinished symphony in E-flat. These had been left in sketch form by Tchaikovsky at the time of his death; but were later arranged, by former student and fellow-composer Sergei Taneyev, into a composition for piano and orchestra, entitled "Andante and Finale". This was published in 1897 as Tchaikovsky's Op. posth. 79, even though it is actually Taneyev's personal arrangement of what is otherwise Tchaikovsky's unscored draft. Arguments concern whether it was worth Taneyev's efforts to resurrect this material—when Tchaikovsky had already expressed doubts as to its musical quality—and whether the "Andante and Finale" should be performed alongside Tchaikovsky's completed movement.