Symphony No. 25 in G minor, K. 183: I. Allegro con brio

Mozart was seventeen when he wrote this, and nothing about it sounds like a young person being cautious. The first movement arrives without preamble — strings in unison, driving forward in a fierce G minor that feels almost Baroque in its severity. What makes it startling even now is the emotional urgency: the syncopated rhythms, the sudden dynamic contrasts, the way phrases tumble over each other as if thought is outrunning the ability to notate it. This is not the serene, crystalline Mozart of popular imagination. This is something rawer — a composer reaching for darkness before the Classical style had fully decided darkness was permitted. The oboes and horns add a particular harshness in this period-instrument texture, doubling the strings rather than softening them. There is no leisurely development, no moment of relief; the movement simply intensifies and then closes with a kind of blunt finality. It sounds like what it is: a prodigy who had absorbed everything around him and then pushed past all of it in a single concentrated burst of will. Put this on when you want to feel the shock of genuine ambition.