Trombone -

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In Bethlehem, Pennsylvania, it was a tradition for trombone quartets to play from church steeples to mark solemn occasions. If you're interested, I can: Trombone

In many famous works, trombonists may wait for over 30 minutes just to play a few notes, leading to the industry joke of "more dollars per note". Tell you more about in classical music

Explain the behind how the slide produces different notes. I can: In many famous works