A.r.d.i., Cassandra Grey's 'Heartless - Extended Mix' came out on November 6, 2017. Since Heartless - Extended Mix 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 Heartless and no other songs are present in the album, we classify this track as a single. Based on our statistics, Heartless - Extended Mix's popularity is not that popular right now. Although the tone can be danceable to some, this track does projects more of a negative sound rather than a postive one.

Heartless - Extended Mix テンポ

We consider the tempo marking of Heartless - Extended Mix by A.r.d.i., Cassandra Grey to be Allegro (fast, quick, and bright) because the track has a tempo of 138 テンポ, a half-time of 69テンポ, and a double-time of 276 テンポ. Based on that, the speed of the song's tempo is fast. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.

Heartless - Extended Mix キー

F♯ Minor is the music key of this track. This also means that this song has a camelot key of 11A. So, the perfect camelot match for 11A would be either 11A or 10B. While, a low energy boost can consist of either 11B or 12A. For moderate energy boost, you would use 8A and a high energy boost can either be 1A or 6A. However, if you are looking for a low energy drop, finding a song with a camelot key of 10A would be a great choice. Where 2A would give you a moderate drop, and 9A or 4A would be a high energy drop. Lastly, 2B allows you to change the mood.