Wrong song!

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So I have some song on my MacBook, in my iTunes database, which was transfered to my Spotify Local Files. However, the same song by the same singer, it was sorted and connected automatically to a song in a CD which actually isn't what I have. And I had no problem playing the correct song on my laptop, but when I play the same song on my iPhone 6s Spotify app, it is playing a completely different song that I don't have. Melody that same, by the same singer, just completely differnt tune and I somehow can't fix this pickel.