Kazusa's 'つつみ込むように (Heal Voice Ver.)' came out on June 13, 2018. With this song being about 5 minutes long, at 4:31, "つつみ込むように (Heal Voice Ver.)" by Kazusa is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. The track order of this song in Kazusa's "Heal Voice1 -SUMMERLOVE-" album is number 7 out of 10. つつみ込むように (Heal Voice Ver.) is not that popular right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.
We consider the tempo marking of つつみ込むように (Heal Voice Ver.) by Kazusa to be Andante (at a walking pace) because the track has a tempo of 78 テンポ, a half-time of 39テンポ, and a double-time of 156 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.
This song is in the music key of A♭ Major. This also means that this song has a camelot key of 4B. So, the perfect camelot match for 4B would be either 4B or 5A. While, 5B can give you a low energy boost. For moderate energy boost, you would use 1B and a high energy boost can either be 6B or 11B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 4A or 3B will give you a low energy drop, 7B would be a moderate one, and 2B or 9B would be a high energy drop. Lastly, 1A allows you to change the mood.