I think this song was trying to utilize the irony of having little to no pattern, seeing as the song title is “Pattern”. Obviously there was some sort of pattern, but comparatively speaking in terms of the majority of K-pop songs, there was a lack of pattern in this song. The chorus wasn't belting or extremely powerful like many of Davichi's songs tend to be and I think this was done with a purpose of breaking away from the norm in K-pop.
I don't know if any of my theories are correct, but just take them for what they're worth. I hope you guys enjoyed my review for “Pattern” by Lee Hae Ri. Please like and share this review on social media. Let me know if there are any reviews you'd like my to do in the future. Thank you as always for showing me support. I think I'm finally caught up but knowing my luck, in an hour there will be 5 new music videos that come out. I'll take it while I can and I guess I'll see you in the next one.