Towering C major chords from organ and orchestra in unison. Dazzling rhythmic interplay between soloist Joyce Yang and the orchestra. An energetic rendition of“The Star-Spangled Banner,” resuming a tradition in Woolsey Hall. Thursday night’s debut of the New Haven Symphony Orchestra’s’23-’24 season was full of triumphant moments, even as it very meaningfully kicked off the orchestra’s final season under Music Director Alisdair Neale.