Release facts
The record
Image: scdn.co
Lyrics
The upload credits the lyrics to 鏡介, while both the music and the vocal are credited to Suno AI.
Source: youtube.comThe video
The music video's art, design and moving images are credited to Midjourney, with 鏡介 credited for the video and its direction.
Source: youtube.comPrompt, generate, pick
A September 2026 note.com analysis says the act writes the lyrics first, has Suno generate several versions and keeps the ones that fit, and that by its own account little beyond the singing-style prompt is done by hand.
Source: note.comSummary
About this song
「拝啓少年」 is a single by 鏡介, a Japanese-language AI music act, released on Spotify and the other streaming services on 23 September 2026 under the name 鏡介studio, which also holds the ℗ line. The track runs about 2 minutes 9 seconds, and an official music video was posted on the act's YouTube channel. The title takes the opening of a letter ("Dear boy"), and the video description simply asks whether the listener is "inside a square" right now. A September 2026 note.com analysis of the act singles it out as one of its newest songs, and says its monologue-like mid-to-high voice is the kind some listeners hear as close to Kenshi Yonezu's. The upload credits list 鏡介 for the lyrics, the music video and the direction, and Suno AI for both the music and the vocal, with the artwork and moving images made in Midjourney. By 2026-10-02 the video had about 4,017 views on YouTube; Spotify did not yet show a play count for the track.
Last Updated 2 October 2026
Spotify track
External Links · 4
Plays over time
How it has been played
Plays · YouTube
4k
Read once so far, on 2 Oct 2026. The line starts with the next reading.
Tracked since 2 Oct 2026. Each platform is read about once a week.
