I am killing myself to find it. I am not a musician so it will be very hard for me to identify it by notes. All i know is the first bar, and thats it.
Symphony: Dvorak 9 (4th movement)?
Concerto: Finale of Tchaikovsky violin concerto?
Is it a solo violin piece with a loud start? (sequence?) Or is it an orchestral piece with a lot of violin in the beginning? Is it maybe a violin concerto (with therefore many violin passages?) I'll venture some guesses:
Bach - Prelude from Partita No. 3 http://www.youtube.com/watch?v=waxat-_tRH8
Mozart - Eine Kleine Nacht Musik http://www.youtube.com/watch?v=Qb_jQBgzU-I
Vivaldi - Four Seasons, Spring http://www.youtube.com/watch?v=50lmd0ngwPc