LENOX — Even the serene and bucolic grounds of Tanglewood can sometimes pulse with a certain caffeinated energy, and this weekend it came from a new source: Andris Nelsons was here for his first visit to Tanglewood since his appointment last year as the Boston Symphony Orchestra’s next music director. The Shed was bustling, and critics and cultural journalists from various US and European press outlets were in attendance. It was a taste, one can hope, of the boost Nelsons is capable of bringing to the fortunes of an orchestra that has slogged through a difficult and lengthy period of transition.
Perhaps reflecting these high hopes, the crowd for Friday night’s all-Dvorak program greeted Nelsons with a standing ovation before a single note was played. For his part, Nelsons looked happy to finally be here — his visit last summer was canceled after an accident in Germany — and he went on to lead the BSO in the orchestra’s first-ever performance of the composer’s symphonic poem “The Noonday Witch.”