In C-Major, the "main" chord of a song is usually the C-E-G chord, and that's usually the beginning and ending chord of a song. The other two most common chords in simple tunes are C-F-A and B-D-F-G. If the song uses those chords, then it's probably in C major.
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Answer:
In C-Major, the "main" chord of a song is usually the C-E-G chord, and that's usually the beginning and ending chord of a song. The other two most common chords in simple tunes are C-F-A and B-D-F-G. If the song uses those chords, then it's probably in C major.