"長い暗闇" by 佐藤振一郎, 中北利男 was released on March 31, 2023. Since 長い暗闇 is still less than 10 minute long, it is still considered a pretty long duration song compared to the average song length. This song does not appear to be explicit due to the lack of the "E" tag. There is only one song in 前向きになれるピアノ1~希望の夢~, so we believe that "長い暗闇" is a single. 長い暗闇 is unknown right now. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.
The tempo marking of 長い暗闇 by 佐藤振一郎, 中北利男 is Adagio (slowly with great expression), since this song has a tempo of 73 テンポ. With that information, we can conclude that the song has a slow tempo. The time signature for this track is 4/4.
G Minor is the music key of this track. Because this track belongs in the G Minor key, the camelot key is 6A. So, the perfect camelot match for 6A would be either 6A or 5B. While, a low energy boost can consist of either 6B or 7A. For moderate energy boost, you would use 3A and a high energy boost can either be 8A or 1A. However, if you are looking for a low energy drop, finding a song with a camelot key of 5A would be a great choice. Where 9A would give you a moderate drop, and 4A or 11A would be a high energy drop. Lastly, 9B allows you to change the mood.