蔭山征彥 made "第三封信 / 友子 我就是那時愛上你" available on October 24, 2008. With 第三封信 / 友子 我就是那時愛上你 being less than two minutes long, at 1:35, we are fairly confident that this song is not explicit and is safe for all ages. Based on the duration of this song, this song duration is much smaller than the average song duration. There is only one song in 《海角七號》電影原聲帶, so we believe that "第三封信 / 友子 我就是那時愛上你" is a single. Based on our statistics, 第三封信 / 友子 我就是那時愛上你's popularity is not that popular right now. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

第三封信 / 友子 我就是那時愛上你 テンポ

The tempo marking of 第三封信 / 友子 我就是那時愛上你 by 蔭山征彥 is Allegro (fast, quick, and bright), since this song has a tempo of 140 テンポ. With that information, we can conclude that the song has a fast tempo. This song can go great with jogging or cycling. The time signature for this track is 1/4.

第三封信 / 友子 我就是那時愛上你 キー

B♭ Major is the music key of this track. This also means that this song has a camelot key of 6B. So, the perfect camelot match for 6B would be either 6B or 7A. While, 7B can give you a low energy boost. For moderate energy boost, you would use 3B and a high energy boost can either be 8B or 1B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 6A or 5B will give you a low energy drop, 9B would be a moderate one, and 4B or 11B would be a high energy drop. Lastly, 3A allows you to change the mood.