Hollow's ' "What They Know" was released on its scheduled release date, January 1, 2007. With this song being about 5 minutes long, at This song 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. There are a total of 14 in the song's album "Son Of A DJ". In this album, this song's track order is #2. Furthermore, we believe that the track originated from United States. What They Know is unknown right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.
With What They Know by Hollow having a BPM of 87 with a half-time of 44 BPM and a double-time of 174 BPM, we would consider this track to have a Andante (at a walking pace) tempo marking. Because of this, we believe that the song has an overall slow tempo. Looking at the BPM of this song, this song might go great with yoga or pilates. The time signature for this track is 4/4.
This song is in the music key of D♭ Major. Or for those who are familiar with the camelot wheel, this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A 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 | ||
|---|---|---|---|---|---|---|---|
| Lies | Suizid3pakt, Hollow | B Minor | 6 | 10A | 140 BPM | ||
| Sneaky Tales - Original Mix | NSD | G Major | 10 | 9B | 165 BPM | ||
| Changed | Hollow | G Major | 9 | 9B | 93 BPM | ||
| Boom City | Hollow | A♭ Minor | 6 | 1A | 116 BPM | ||
| Baddy | Harduz, Gearbox Digital | G Major | 9 | 9B | 100 BPM | ||
| Heaven | Treachery | D Major | 10 | 10B | 100 BPM | ||
| ADDICTED | COELHO | G Major | 9 | 9B | 100 BPM | ||
| Just Ride (Remix) | J-Bone, Blu Man, Hollow | G Major | 9 | 9B | 90 BPM | ||
| Vegas Baby! | Partyraiser, Rosbeek | D Major | 9 | 10B | 103 BPM | ||
| Wall | Nitrogenetics | D♭ Major | 10 | 3B | 155 BPM | ||
| Fantasy (Game On x Dragonized) | Akimbo, Screecher, Aalst | G Major | 9 | 9B | 100 BPM | ||
| Bring the Noise | Satoruz | D Major | 9 | 10B | 102 BPM | ||
| Hostile | OptimusXtreme | D♭ Major | 9 | 3B | 170 BPM | ||
| New Creator | Hollow | E♭ Major | 9 | 5B | 87 BPM | ||
| Stupid Asf (Remix) | Donovan Korleone, Rocky Duh, Hollow, Jody Greezy | B♭ Minor | 6 | 3A | 80 BPM | ||
| Gabber Die Smiling | THE UNFAMOUS | A Minor | 10 | 8A | 180 BPM | ||
| Dirty Trick | Madnezz, Mind Controller | G Major | 9 | 9B | 100 BPM | ||
| Ya'll Done Did It | Spit-Flame, Hollow, R-Fire | G Major | 6 | 9B | 125 BPM | ||
| Turn My Shit Up | Inflame | A Minor | 8 | 8A | 157 BPM | ||
| Kick Factory | O-TOMIC | G Major | 9 | 9B | 100 BPM | ||
| DECAPITATE | Distress, Qriminal | B Major | 5 | 1B | 75 BPM | ||
| No Excuses | Alex B, DJ LX | G Major | 9 | 9B | 100 BPM | ||
| Across The Globe (Official Masters Of Hardcore Austria 2026 Anthem) | Unfused | G Major | 9 | 9B | 100 BPM | ||
| Eat My Kick | Kozieum | G Major | 9 | 9B | 100 BPM | ||
| Jeden Strzał | PIH, Dejw, Kojot, Nyczak, Hollow, Druga Strona Ulicy | D♭ Minor | 5 | 12A | 95 BPM |