It is maybe ironic that Mozart's final three symphonies (nos. 39, 40 and 41), grand works that epitomise the heights of the Classical era, have been intellectually romanticised in the centuries following his death. It is indeed of one music's marvels that Mozart managed to complete these three extensive works in the summer of 1788, however there has been a prolonged musicological search for an extramusical meaning to these symphonies, with some claiming they might encapsualte Mozart's worldview, a plea for humaniatrianism.
It seems unlikely that, for the most part, a contemporary audience would understand the works in this way, but I believe that there is still a feeling that these works must be revered and treasured as Mozart's final symphonic testament. However, with this acknolwedgment of importance has come an inevitable familiarity, and I feel programming all three works in the same concert is only really justifiable if you have something original and exciting to say. Unfortunately, these were perfectly satisfying yet very routine interpretations.
Firstly, the balance of the orchestra obscured the delicacy of Mozart's orchestration. In the 1780s, the string section would have been at least half the size of the RPO's and consequently the woodwind parts would have been more audible. As a result of this, a lot of the detail in the woodwind passages was lost, and with that a lot of the excitement of Mozart's writing. This was enough to make the concert an average affair; part of the joy of Mozart's orchestral writing is the dialogue between orchestral parts and this was another concert of Classical era works that showed scant regard for this.
Despite this there were some pleasing aspects. The tempi were well-judged throughout and the movements were allowed room to breathe. The slow opening of Symphony no. 39 in E flat major, a common trait in Mozart's later symphonies, lacked majesty but the work proceeded elegantly, the Minuet and Trio was played a little formulaically, but the the final movement was played with energy and drive.