Why do some instruments need warming up?
Show answer & explanation
Answer: Temperature affects pitch accuracy
Temperature affects pitch accuracy ✓ — Correct! Temperature affects metal expansion and air density, which change pitch. Brass and woodwind instruments need warming to reach stable playing temperature where they're in tune. String tension also changes with temperature. 'Warming up' stabilizes these factors.
Players' hands must warm first — Wrong. While warm hands help playing, instrument warm-up refers to temperature stabilizing the instrument's pitch, not hand comfort.
Warm air produces louder sound — Wrong. Temperature doesn't significantly affect volume. Warm-up prevents pitch drift as the instrument changes temperature during playing.