| after the tone | | | | | | | |
| Butterfly | - 조원선 (composer, lyricist)
- 이상순 (composer)
- 윤희중 (lyricist)
| | | | | | |
| Crunch (instrumental) | | | | | | | |
| I Don't Want U | - 조원선 (lyricist, composer)
- 이상순 (composer)
| | | Song | | | |
| overjoyed | | | | | | | |
| The End (instrumental) | | | | | | | |
| triangle | | | | | | | |
| 괜찮아요 | - 조원선 (composer, lyricist)
- 이상순 (composer)
| | | | | | |
| 눈을 한번 깜박 | - 조원선 (composer, lyricist)
- 이상순 (composer)
| | | | | | |
| 다시월요일 | - 조원선 (composer, lyricist)
- 이상순 (composer)
| | | | | | |
| 두 사람 | - 조원선 (composer, lyricist)
- 이상순 (composer)
| | | | | | |
| 베란다에서 | - 조원선 (lyricist, composer)
- 이상순 (composer)
| | | Song | | | |
| 보낸다 | - 조원선 (lyricist, composer)
- 이상순 (composer)
| | | Song | | | |
| 살랑살랑 | - 조원선 (lyricist, composer)
- 이상순 (composer)
| | | Song | | | |
| 숨길수 없어요 | - 조원선 (composer, lyricist)
- 이상순 (composer)
| | | | | | |
| 아무도 모른다 | - 조원선 (composer, lyricist)
- 이상순 (composer)
| | | | | | |
| 침묵 | | | | Song | | | |
| 하루하루 | - 조원선 (lyricist, composer)
- 이상순 (composer)
| | | Song | | | |
