Letters Left in September
NONGINA
Moonlight Sway
2:41 January 18, 2026
BPM
172
Key
C Major
Camelot
8B

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Letters Left in September by NONGINA Song Details

"Letters Left in September" by NONGINA had its release date on January 18, 2026. The duration of This song is about two minutes long, specifically at 2:41. This song does not appear to have any foul language. Letters Left in September's duration is considered a little bit shorter than the average duration of a typical track. The track order of this song in NONGINA's "Moonlight Sway" album is number 5 out of 9. On top of that, Sweden appears to be the country where this track was created. The popularity of Letters Left in September is currently not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

BPM and Tempo

We consider the tempo marking of Letters Left in September by NONGINA to be Vivace (lively and fast) because the track has a tempo of 172 BPM, a half-time of 86BPM, and a double-time of 344 BPM. Based on that, the speed of the song's tempo is fast. The time signature for this track is 4/4.

Music Key

This song has a musical key of C Major. This also means that this song has a camelot key of 8B. So, the perfect camelot match for 8B would be either 8B or 9A. While, 9B can give you a low energy boost. For moderate energy boost, you would use 5B and a high energy boost can either be 10B or 3B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 8A or 7B will give you a low energy drop, 11B would be a moderate one, and 6B or 1B would be a high energy drop. Lastly, 5A 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!

Popularity
Loudness
-6.763 dB
Acousticness
77%
Danceability
58%
Energy
40%
Instrumentalness
0%
Liveness
10%
Loudness
89%
Speechiness
5%
Valence
15%

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ISRC
SE5BU2654466
Label
L-M Records/RCA Records