vowl., Sace's 'in my heart (sped up)' came out on October 14, 2022. The duration of in my heart (sped up) is about two minutes long, specifically at 2:18. This song does not appear to have any foul language. in my heart (sped up)'s duration is considered a little bit shorter than the average duration of a typical track. Because this song is the only song in in my heart (sped up) and no other songs are present in the album, we classify this track as a single. Based on our statistics, in my heart (sped up)'s popularity is unknown right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

in my heart (sped up) テンポ

We consider the tempo marking of in my heart (sped up) by vowl., Sace to be Allegro (fast, quick, and bright) because the track has a tempo of 128 テンポ, a half-time of 64テンポ, and a double-time of 256 テンポ. 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 4/4.

in my heart (sped up) キー

The music key of this track is 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.