Conversation so far:
What was Anton Webern's performance style?
Anton Webern insisted on lyricism, nuance, rubato, sensitivity, and both emotional and intellectual understanding in performance of music.
What happened in 1966 involving Anton Webern?
Günter Wand's 1966 recording of the Cantata No. 1 (1938–40), Op. 29, with the Symphonieorchester des Bayerischen Rundfunks et al., may likewise be contrasted with both of Boulez's renditions.
Was Anton Webern a composer and a conductor?
Anton Friedrich Wilhelm von Webern (3 December 1883 – 15 September 1945) was an Austrian composer and conductor.
How did Webern try to engage his audience?
As a composer and conductor, Anton Webern conscientiously and non-literally handled notated musical figures, phrases, and entire scores to maximize expressivity in performance and cultivate audience engagement and understanding.
Was Anton Webern under the direction of anyone?
Did Webern's music contain metaphors?
His compositional process as both publicly stated and later revealed in the musical and extramusical metaphors and associations everywhere throughout his sketches.
How did others view  Boulez's first attempt at completely recording Anton Webern's works?
When Pierre Boulez first oversaw a project to record all of Anton Webern's music, not including the juvenilia, the results fit on three rather than six CDs
How did the post war affect Anton Webern's music?
Shortly after the post-war period, Anton Webern received attention diverted from his upbringing and surroundings and focused in a direction antithetical to his participation in German Romanticism and Expressionism.

Question: Who romanticized his symphony?
Self-contained rewrite: Who romanticized Anton Webern's symphony with the hr-Sinfonieorchester?