Saxophone lessons

As wind instruments warm up, air passes through them more quickly. As a result — as the sound waves travel faster — the pitch gets sharper. Likewise, if an instrument gets colder, the pitch gets flatter.

This is why you sometimes hear musicians re-tuning during a performance.

Conditions change.

It’s a good lesson for any of us. As conditions change, we need to stay in tune — not by shifting with the prevailing temperature, but by continually returning to our true pitch.

H/T Rick Hirsch