The opening of a five-movement "Sinfonia concertante" in an expressionist / late romantic idiom for string orchestra. This "Capriccio tenebroso" functions as a modified sonata-allegro form in itself, as well as an exposition of sorts for the work as a whole, preceded by a slow introduction wherein fragments of later-to-be-established motivic/melodic ideas "rise out of the ether". Past the introduction, within the movement proper, a perpetually unfurling contrapuntal texture often anchored in the exotic Lydian dominant (Lydian + Mixolydian) and Whole Tone scales accumulates tension, all sense of tonal gravity frequently suspended, leading to an intensely energized and dramatic concluding passage.    

You may find the engraved "conductor's score" here.    

If you enjoyed this, please consider becoming a patron at https://www.patreon.com/philipdaniel or https://www.subscribestar.com/philip-daniel