"Letter" by Kim Dong Ryul was released on September 30, 2020. With this song being about 5 minutes long, at 5:09, "Letter" by Kim Dong Ryul is fairly a long song compared to the average song length. This song does not have an "Explicit" tag, making it safe for all ages. The track order of this song in Kim Dong Ryul's "KIMDONGRYUL LIVE 2019 Song Of Old" album is number 4 out of 16. In terms of popularity, Letter is currently not that popular. In our opinion, the overall tone is not very danceable and projects negative sounds, such as being sad, depressed, or angry.

Letter テンポ

We consider the tempo marking of Letter by Kim Dong Ryul to be Andante (at a walking pace) because the track has a tempo of 91 テンポ, a half-time of 46テンポ, and a double-time of 182 テンポ. Based on that, the speed of the song's tempo is slow. Activities such as, yoga or pilates, can go well with this song. The time signature for this track is 4/4.

Letter キー

This song is in the music key of G Minor. 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.