Sorry for the lazy work and low quality of the video + inconsistent sound quality. Again, this is my personal list and take note I might miss some good track (I only list track from which that I had watch).
Sorry again for the coloring of some text which may make it difficult to read.
I love all the 40 track and frankly speaking most of the ranking is a bit random other than my top 15 list.
Track list:
1. Auditory Hallucination - Jang Jae In feat NaShow (Kill Me, Heal Me 2015) 19:01
2. Reset - Tiger JK feat Jinsil (Who Are You - School 2015) 18:21
3. Tears Stole the Heart - Ailee (Secret Love 2013) 17:41
4. My Destiny - LYn (You Who Came From the Stars 2014) 17:15
5. Because of You - SPICA (Super Daddy Yul 2015) 16:37
6. Spring by Chance - Loco feat Yoo Joo (A Girl Who Sees Smells 2015) 16:10
7. Let You Know - Wendy (D-Day 2015) 15:38
8. What's Wrong With Me - San E feat Kang Min Hee (You're All Surrounded 2014) 15:17
9. It Has to Be You - Yesung (Cinderella's Sister 2010) 14:50
10. Run _ Nell (Two Weeks 2013) 14:17
11. Up & Down - EXID (Incarnation of Money 2013) 13:46
12. Come Again - mad Clown feat Kim Na Young (Descendants of the Sun 2016) 13:10
13. My Heart is Cursing - Kim Dong Wook (You're Beautiful 2009) 12:41
14. One Day - LYn (Mask 2013) 11:58
15. Goodbye - Hyorin (You Who Came From the Stars 2014) 11:34
16. All for You - Seo In Gook feat Eunji (Reply 1997) - 2012 11:13
17. A Nightmare - Joon Hyung feat Ga Yoon (Yong Pal 2015) 10:44
18. Memories of You - Ivy (Incarnation of Money 2013) 10:14
19. Black Paradise - BEAST (IRIS 2 - 2013) 9:50
20. After a Long Time - Baek Ji Young (Rooftop Prince 2012) 9:15
21. Though It Seems Forgotten (49 Days 2011) 8:54
22. Green Rain - SHINee (The Queen's Classroom 2013) 8:19
23. Hallelujah - Big Bang (IRIS 2009) 7:48
24. Burn Out - Block B (Ghost 2012) 7:19
25. Will You Kiss Me? - G.NA (Mischievous Kiss 2010) 6:44
26. Stand Up - J-Min (To the Beautiful You 2012) 6:18
27. Super Star - Hyorin feat park jy Yeon feat Ailee (Dream high 2) 5:50
28. Snowflake - Gummy (That Winter, the Wind Blows 2013) 5:21
29. Love Song - Sung Yae (Who Are You - School 2015) 5:00
30. Perhaps Love - HowL & J (Goong 2006) 4:23
31. I Ponder Your Face - Byul feat Swings (I Miss You 2012) 4:00
32. Driving Me Crazy - Hyorin (Master's Sun 2013) 3:33
33. High High - Kim Tae Woo (A Gentlemen's Dignity 2012) 3:12
34. Please Let Us Love - Apink (Protect the Boss 2011) 2:46
35. Ice Flower - Ailee (Queen of Ambition 2013) 2:20
36. Can't Believe It - Younha (Personal Taste 2010) 1:58
37. My Dream - Go Eun Ah feat Kwak Yong Hwan (K-POP - The Ultimate Audition 2012) 1:23
38. Difficult But Easy - Luna feat Krystal (Invincible Lee Pyung kang 2009) 0:54
38. Goodbye Day - Ulala Session (Bridal Mask 2012) 0:27
40. Because I'm Stupid - SS501 (Boys Before Flowers 2009) 0:00