Make sure that everyone in the ensemble (or orchestra if you are using this as part of a larger group) knows where their part fits in. If they get off there, it tends to fall apart. Also, the violin rhythms at B must be kept extremely strict. The string crossings can be tricky, and I'd suggest to play in the lower half of the bow in a 'down up down up up, down up down up up' bowing. first of all, the pattern from measure 13 to 16 is particularly difficult for the first viola (the part that I played). I encountered some trouble spots while performing, and if you have any desire to perform this I have a few pointers. Some classmates and I performed it at the Washington Musical Educators Association Regional Ensemble Contest at Kamiak High School in Mukilteo, Washington (we got a 2+, with 1 being best, 5 worst, and a '2+' being better than a '2'). It is arranged for a string septet, consisting of 3 violins, 2 violas, a cello and a string bass.