YOU SAID:

finding singing meaning will have been meaning to sing playing swaying trumpeting

INTO JAPANESE

歌う意味を見つけることは、揺れるトランペットを吹きながら歌うことに意味があっただろう

BACK INTO ENGLISH

Finding the meaning of singing would have meant singing while playing a swinging trumpet.

INTO JAPANESE

歌う意味を見つけるということは、トランペットを吹き鳴らしながら歌うことだったでしょう。

BACK INTO ENGLISH

Finding the meaning of singing would have meant singing while blowing the trumpet.

INTO JAPANESE

歌う意味を見つけるということは、ラッパを吹きながら歌うことだったでしょう。

BACK INTO ENGLISH

Finding the meaning of singing would have meant singing while blowing the trumpet.