"Error 0x21FUN" by Castision had its release date on October 26, 2025. The duration of This song is about two minutes long, specifically at 2:21. This song does not appear to have any foul language. Error 0x21FUN's duration is considered a little bit shorter than the average duration of a typical track. The track order of this song in Castision's "Maybe the computer will be fun (1.1)" album is number 7 out of 23. In terms of popularity, Error 0x21FUN is currently not that popular. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.
We consider the tempo marking of Error 0x21FUN by Castision to be Moderato (at a moderate speed) because the track has a tempo of 117 BPM, a half-time of 58BPM, and a double-time of 234 BPM. Based on that, the speed of the song's tempo is moderate. Activities such as, walking, can go well with this song. The time signature for this track is 3/4.
C Major is the music key of this track. 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!
| Track | Artist | Key | Energy | Camelot | BPM | ||
|---|---|---|---|---|---|---|---|
| Суки Танцы и Ножи | M()RE, Chernoburkv | D Major | 6 | 10B | 140 BPM | ||
| flowers of the may | mad arieri, winterchroma | D♭ Major | 7 | 3B | 182 BPM | ||
| possessive | amphy | D Minor | 10 | 7A | 190 BPM | ||
| sourness | corpsse | C Major | 9 | 8B | 141 BPM | ||
| 2D glitched world | inf3rnxxx | G Minor | 8 | 6A | 174 BPM | ||
| strangers - slowed | VNXIOUS, angeltears | D♭ Major | 8 | 3B | 88 BPM | ||
| Холодное сердце | Slavnayad, UN4N8WN | F♯ Minor | 9 | 11A | 142 BPM | ||
| Fashion | Bronik Beats | A♭ Major | 6 | 4B | 90 BPM | ||
| Velvet Abyss | Bloody Mercury | D♭ Minor | 9 | 12A | 155 BPM | ||
| Температура | Chernoburkv | G Major | 7 | 9B | 95 BPM | ||
| i don't belong here - Ultra Slowed | graur | G Major | 7 | 9B | 150 BPM | ||
| i fеel like an idiot again | deadrazy | C Major | 7 | 8B | 100 BPM | ||
| spirit of reflection - Sped Up | xanarhykun | F♯ Minor | 5 | 11A | 143 BPM | ||
| Эхо (Slowed) | SKWLKR | A♭ Major | 6 | 4B | 140 BPM | ||
| CORACION - Ultra Slowed | ARIUKXXL | G Major | 7 | 9B | 150 BPM | ||
| SVICIDE GIRLS DANCE | CAIN | F♯ Major | 10 | 2B | 150 BPM | ||
| СМЕ}{ОПА№РАМ@ | Samurai SLT, Рудольф Страусов | G Major | 7 | 9B | 150 BPM | ||
| Barrier | Castision | G Major | 6 | 9B | 96 BPM | ||
| ain't nobody claiming me - Slowed | graur | G Major | 7 | 9B | 150 BPM | ||
| Cool For The Summer - Ultra Slowed Hardstyle - Agartha | Enmity, LXMINAL | G Major | 7 | 9B | 150 BPM | ||
| Skyline | Sensi Affect | G Minor | 10 | 6A | 107 BPM | ||
| nyan (FUCK mix) | Pisca | D♭ Minor | 6 | 12A | 185 BPM | ||
| Synthetic Death | UROBOROS | E♭ Minor | 6 | 2A | 125 BPM | ||
| v 370m n37 r0m4n71k1!!! | eldiaklozz, vyrval | A Minor | 9 | 8A | 160 BPM | ||
| Кровь на твоей щеке | Радость Моя | D♭ Major | 4 | 3B | 95 BPM |