With the new edition of the G-minor Symphony, a vital work group in Mozart's oeuvre is now complete: the three late symphonies K. 543, 550 and 551, now available in Urtext editions. After this general announcement, here are some interesting fine points. As in his new edition of the Hafner Symphony, editor Henrik Wiese uncovers three different stages in the genesis of the G minor symphony and makes them accessible to performers in a surprisingly compelling way. Mozart initially wrote the work without clarinets (1st stage, 1st version), and then changed the wind orchestration in the Andante (2nd stage, 1st version). Not until a final stage did he add the clarinets and cancel the altered instrumentation in the Andante (3rd stage, 2nd version). Thanks to the new score and parts, these stages and versions can now be compared with one another, studied and, above all, performed for the first time ever.