Yi Jeong and Ga Eul from Boys Over Flowers(Korean Drama?

Erm it's actually a saxophone not a trumpet but other than that, agree with Mona Chen's answer. I'm also that couple's fan and I found that a YouTube channel had just cuts of their moment together just type yi Jung and ga eul cuts and it should come up. I didn't watch the entire bof cause after episode 13 I got bored but wanted to see the couple's progress and that's when I saw the videos in the suggestion box.