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In a highly connected world where technology doesn’t necessarily connect people in a human way, individuals become socially isolated and feel
intense loneliness.
The invention of portable music players and earphones has made music more personal, too.
However, the communal elements persist,
manifesting their power in singing events, large and small.
Singing with others can be a way to heal and help us feel connected, happy, and healthy.
Maybe it is in our genes as a social species.
Just open your mouth, start making a sound, and let your voice go.
You’ll know how good it is almost instantly.

However, the communal elements persist, manifesting their power in singing events, large and small.
manifesting their power in singing events, large and small은 앞 절의 내용에 대한 부수적인 상황을 나타내는 분사구문이다.
Singing with others can be a way to heal and help us feel connected, happy, and healthy.
Singing with others는 문장의 주어로 쓰인 동명사구이다.
to heal ... healthy는 a way를 수식하는 to부정사구이다.
help는 목적격 보어로 원형부정사과 to부정사 둘 다 취할 수 있으며, 여기서는 원형부정사 feel이 쓰였다.
You’ll know how good it is almost instantly.
how good it is는 간접의문문으로, 의문사가 이끄는 명사절로서 know의 목적어 역할을 한다.