Help is on the way. Check your email. One of the biggest challenges of this piece is the counting. I have marked in lots of cues and split the multi-rests. The cadenza is rhythmic, and often is conducted. The harpist has to be together with the violinist, so it really helps to have a copy of the violin part and know exactly what to listen for. Ask to be as close as possible to the soloist, so that you can hear each other. Good luck!