SAN FRANCISCO — Arnie Roth, in every way, looks the part of an orchestral conductor. Waving his baton in front of the San Francisco Symphony Orchestra, clad in long tails that almost reach the floor, his long ponytail bobbing behind him, he most definitely is one. On a massive projection screen suspended above the concert […] SAN FRANCISCO -- Arnie Roth, in every way, looks the part of an orchestr