Hello, goodbye.
Isaac Hong
Hello, goodbye.
3:06 November 12, 2025
BPM
140
Key
B Major
Camelot
1B

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Hello, goodbye. by Isaac Hong Song Details

Isaac Hong's 'Hello, goodbye.' had a release date set for November 12, 2025. The duration of This song is about 3 minutes long, at 3:06. Based on our data, This song appears to be safe for all ages and is not considered explicit. This track is about the average length of a typical track. The track order of this song in Isaac Hong's "Hello, goodbye." album is number 1 out of 2. On top of that, South Korea appears to be the country where this track was created. Based on our statistics, Hello, goodbye.'s popularity is average in popularity 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 Hello, goodbye. by Isaac Hong to be Allegro (fast, quick, and bright) because the track has a tempo of 140 BPM, a half-time of 70BPM, and a double-time of 280 BPM. Based on that, the speed of the song's tempo is fast. Activities such as, jogging or cycling, can go well with this song. The time signature for this track is 4/4.

Music Key

This song is in the music 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!

Popularity
Loudness
-8.298 dB
Acousticness
46%
Danceability
58%
Energy
44%
Instrumentalness
0%
Liveness
16%
Loudness
86%
Speechiness
4%
Valence
34%

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ISRC
KRA382506560
Label
L-M Records/RCA Records