Megumi Hayashibara's '今日の日はさようなら' came out on July 8, 2009. The duration of 今日の日はさようなら is about two minutes long, specifically at 2:43. This song does not appear to have any foul language. 今日の日はさようなら's duration is considered a little bit shorter than the average duration of a typical track. There is only one song in ヱヴァンゲリヲン新劇場版:破 オリジナルサウンドトラック, so we believe that "今日の日はさようなら" is a single. In terms of popularity, 今日の日はさようなら is currently average in popularity. Although the overall vibe is very danceable, it does project more negative sounds.
The tempo marking of 今日の日はさようなら by Megumi Hayashibara is Andante (at a walking pace), since this song has a tempo of 100 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 3/4.
This song is in the music key of D Major. This also means that this song has a camelot key of 10B. So, the perfect camelot match for 10B would be either 10B or 11A. While, 11B can give you a low energy boost. For moderate energy boost, you would use 7B and a high energy boost can either be 12B or 5B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 10A or 9B will give you a low energy drop, 1B would be a moderate one, and 8B or 3B would be a high energy drop. Lastly, 7A allows you to change the mood.