HIKARI Project 2021, Shinyong, mariko, mickey, sattin, MystieFuma, idomee, Yuuki Ishihara, Be-B izumiyo, Miki, Yasko's 'HIKARI' came out on October 14, 2021. Since HIKARI 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. Because this song is the only song in HIKARI and no other songs are present in the album, we classify this track as a single. On top of that, Turks and Caicos Islands appears to be the country where this track was created. HIKARI is unknown right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

HIKARI テンポ

We consider the tempo marking of HIKARI by HIKARI Project 2021, Shinyong, mariko, mickey, sattin, MystieFuma, idomee, Yuuki Ishihara, Be-B izumiyo, Miki, Yasko to be Andante (at a walking pace) because the track has a tempo of 80 テンポ, a half-time of 40テンポ, and a double-time of 160 テンポ. Based on that, the speed of the song's tempo is slow. The time signature for this track is 4/4.

HIKARI キー

This song is in the music key of D♭ Major. This also means that this song has a camelot key of 3B. So, the perfect camelot match for 3B would be either 3B or 4A. While, 4B can give you a low energy boost. For moderate energy boost, you would use 12B and a high energy boost can either be 5B or 10B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 3A or 2B will give you a low energy drop, 6B would be a moderate one, and 1B or 8B would be a high energy drop. Lastly, 12A allows you to change the mood.