Before the end of the performance, Prof. Schellenberger stops the group to make a correction related to the rapport between the different instruments for a certain passage of this first movement.
When the complete performance is over, the professor corrects the tempo: the initial upbeat should be played with a clearer breath in order to get more precision in tempo and understanding for the octet. He also points out the difference between sforzato and fortepiano: in this case, they should play 'espressivo sf'.
Afterwards, the professor makes some indications related to the phrasing for the different instruments, and other brief comments on dynamics, agogics, articulation and notes duration and so on. Regarding the end of the first mov., Schellenberger also points out the phrasing, clarity of the execution, and not to do rallentando just at the end.