Sung Haebin's 'Letter' had a release date set for January 29, 2024. With this song being around four minutes long, at 3:31, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. Because this song is the only song in Letter and no other songs are present in the album, we classify this track as a single. Based on our statistics, Letter's popularity is not that popular right now. Although the overall vibe is very danceable, it does project more negative sounds.
We consider the tempo marking of Letter by Sung Haebin to be Allegro (fast, quick, and bright) because the track has a tempo of 130 BPM, a half-time of 65BPM, and a double-time of 260 BPM. Based on that, the speed of the song's tempo is fast. Activities such as, walking, can go well with this song. The time signature for this track is 3/4.
This song has a musical key of B Major. This also means that this song has a camelot key of 1B. So, the perfect camelot match for 1B would be either 1B or 2A. While, 2B can give you a low energy boost. For moderate energy boost, you would use 10B and a high energy boost can either be 3B or 8B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 1A or 12B will give you a low energy drop, 4B would be a moderate one, and 11B or 6B would be a high energy drop. Lastly, 10A allows you to change the mood.
Want to find the BPM and music key for other songs? Check out our BPM and Key Finder page!
| Track | Artist | Key | Energy | Camelot | BPM | ||
|---|---|---|---|---|---|---|---|
| focuci | the orchard | C Major | 2 | 8B | 119 BPM | ||
| 다시 | 다울 | E♭ Minor | 3 | 2A | 131 BPM | ||
| Meant to Be | LA POEM | E Major | 4 | 12B | 133 BPM | ||
| Letter | Sung Haebin | B Major | 2 | 1B | 130 BPM | ||
| your endless tears | Bammaru | E Major | 4 | 12B | 133 BPM | ||
| One of Those Days | 유명종 | E Major | 9 | 12B | 90 BPM | ||
| Would you be Free from Your Burden of Sin | Park Da Hye | A Major | 5 | 11B | 200 BPM | ||
| Story With You | MOVNING | B♭ Major | 5 | 6B | 72 BPM | ||
| In this silence | Hyun Seong | D Major | 5 | 10B | 179 BPM | ||
| Don’t Say Goodbye | Min Suhyun, Choi Henah | A♭ Minor | 2 | 1A | 133 BPM | ||
| We will sing | SOBO, Sung Haebin | E Major | 4 | 12B | 133 BPM | ||
| It Was a Good Day (feat. Sung Haebin) | LYRICY, Sung Haebin | D♭ Major | 3 | 3B | 87 BPM | ||
| 2025 Monthly Yoon December - Thanks to | Yoon Jong Shin | A Major | 4 | 11B | 123 BPM | ||
| Hello, Sara | Hwina | E Major | 4 | 12B | 133 BPM | ||
| YOUR STAR | YEDAM YOON | E♭ Major | 3 | 5B | 122 BPM | ||
| A Flying Butterfly | KEN | E Major | 4 | 12B | 133 BPM | ||
| Like the movies | ROH TAE HYUN | E Major | 4 | 12B | 133 BPM | ||
| 32번 버스 | Sung Haebin | C Major | 3 | 8B | 96 BPM | ||
| 닿을 수 없는 마음 | Amel Music | F♯ Major | 3 | 2B | 152 BPM | ||
| FIRST LOVE (2025 PIANO VER.) | JOONIL JUNG | E Major | 3 | 12B | 65 BPM | ||
| The Day We Dream Of (Epilogue) | K.Y.C Singer-songwriter | E Major | 7 | 12B | 184 BPM | ||
| A Whispered Goodbye | Shin Seung Hun | G Minor | 3 | 6A | 65 BPM | ||
| 전하지 못한 마음 | Hello Bonjour | A♭ Major | 2 | 4B | 132 BPM | ||
| Sakura | Tokai | E Major | 4 | 12B | 133 BPM | ||
| Stand up | Lee Dae Han | D♭ Major | 7 | 3B | 128 BPM |