Final answer:
The violoncello and the key'd cornet dominate the first minute of The Rite of Spring.
Step-by-step explanation:
The instruments that seem to dominate the first minute of The Rite of Spring are the violoncello and the key'd cornet. The violoncello creates a slow and mournful sound, representing the young man's heart's complaint, while the key'd cornet glides quickly and creates intense and passionate pangs through the listener's belly and breast.