"On a lighter note": what is the meaning of this and how to use it?

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Music by Eric Matyas
https://www.soundimage.org
Track title: Forest of Spells Looping

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Chapters
00:00 &Quot;On A Lighter Note&Quot;: What Is The Meaning Of This And How To Use It?
00:28 Accepted Answer Score 15
00:53 Answer 2 Score 1
01:08 Answer 3 Score 0
01:24 Thank you

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Tags
#phrases #grammaticality

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