if you look at the first of the program you have very early, young vibrant mendelson; fabulous opener and then you have this fabulous concerto written for us in the orchestra. is our gift. msk(music) >> and then you have strauss, extraordinary piece. the most challenging of all. string orchestra work. 23 solo instrument, no violin section, now viola section; everybody is responsible for their part in this piece. the challenge is something that i felt not only that we could do , absolutely could do, but i wanted to show off. i can't tell you how aware i am of the audience. not only what i hear but their vibes, so strong. i have been doing this for a long time. i kind of make them feel what i want them to feel. there is nobody in that audience or anywhere that is not going to know that particular song by the fourth note. and that is our encore on tour. by the way.