こんにちは谷田さん, Kagamine Rin made "芥の部屋は錆色に沈む" available on July 10, 2016. With this song being around four minutes long, at 4:12, 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. There is only one song in 彼は天井から見ている, so we believe that "芥の部屋は錆色に沈む" is a single. In terms of popularity, 芥の部屋は錆色に沈む is currently not that popular. The mood doesn't appear to be that danceable, but it still produces a high amount of positive energy.
The tempo marking of 芥の部屋は錆色に沈む by こんにちは谷田さん, Kagamine Rin is Andante (at a walking pace), since this song has a tempo of 106 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.
E♭ Major is the music key of this track. This also means that this song has a camelot key of 5B. So, the perfect camelot match for 5B would be either 5B or 6A. While, 6B can give you a low energy boost. For moderate energy boost, you would use 2B and a high energy boost can either be 7B or 12B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 5A or 4B will give you a low energy drop, 8B would be a moderate one, and 3B or 10B would be a high energy drop. Lastly, 2A allows you to change the mood.