General comments of the professor: the student lacks strength, projection and clarity of sound, particularly in the second part (Allegro).
Once in the Allegro, the professor recommends to pay attention to the harmony of the piano part, to play the triplets clearer and to think in a singing way rather than "forcing" the sound ("making more pressure does not lead to more sound"). Harmonic changes mean expression changes.
The professor works on articulation, phrasing, tuning, bowings, bow direction, distribution, and dynamics. He also recommends the student to play in a more relaxed way, thus making it easier and enjoying it more. In a certain passage, the colour has to be different, picturing the horn sound. Moreover, the professor proposes different fingerings to give a greater sense of cadenza. Finally, he corrects the tuning of the penultimate chord of the piece to achieve more resonance ("to ring more").