X-Tralounge made "Fortress" available on November 5, 2012. With this song being around four minutes long, at 4:20, the duration of this song is pretty average compared to other songs. This track is safe for children and doesn't appear to contain any foul language, since the "Explicit" tag was not present in this track. The song is number 6 out of 9 in Chill out Sessions: Meridians by X-Tralounge. The popularity of Fortress is currently unknown right now. The overall mood can be danceable to some, especially with it's high amount of postive energy.

Fortress テンポ

The tempo marking of Fortress by X-Tralounge is Presto (very, very fast), since this song has a tempo of 186 テンポ. With that information, we can conclude that the song has a fast tempo. The time signature for this track is 4/4.

Fortress キー

The music key of this track is G Major. This also means that this song has a camelot key of 9B. So, the perfect camelot match for 9B would be either 9B or 10A. While, 10B can give you a low energy boost. For moderate energy boost, you would use 6B and a high energy boost can either be 11B or 4B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 9A or 8B will give you a low energy drop, 12B would be a moderate one, and 7B or 2B would be a high energy drop. Lastly, 6A allows you to change the mood.