Wonderful★opportunity! made "ーー" available on June 1, 2016. With this song being around four minutes long, at 3:47, 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 ワン☆オポ!VOL.10, so we believe that "ーー" is a single. Based on our statistics, ーー's popularity is not that popular right now. The overall tone is very danceable, especially with its high energy, which produces more of a euphoric, cheerful, or happy vibe.

ーー テンポ

The tempo marking of ーー by Wonderful★opportunity! is Allegro (fast, quick, and bright), since this song has a tempo of 131 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with walking. The time signature for this track is 4/4.

ーー キー

The music key of this track is D Minor. Because this track belongs in the D Minor key, the camelot key is 7A. So, the perfect camelot match for 7A would be either 7A or 6B. While, a low energy boost can consist of either 7B or 8A. For moderate energy boost, you would use 4A and a high energy boost can either be 9A or 2A. However, if you are looking for a low energy drop, finding a song with a camelot key of 6A would be a great choice. Where 10A would give you a moderate drop, and 5A or 12A would be a high energy drop. Lastly, 10B allows you to change the mood.