Life without music would be a mistake.
Life without music would be a tragedy.
To say it would be a 'mistake' would suggest that we went ahead and made life on Earth but forgot to include music in it, and now we have to revoke life and start again, this time properly.
Well, it's not an English saying to begin with, it's a German one.
Life without music would hardly be much different from life with music ... except for the music part.
Well, that and my wife would stop bugging me to get up and dance at wedding receptions.
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