1 confirmed releases and premieres in September 2017: 1 artists, 0 music videos. Sources are official YouTube channel teasers/MVs/audio, Apple Music release dates and the Wikipedia release list, marked on every line. Rumoured or unconfirmed dates are not listed. Dates in KST.
By source: Apple Music 1; by type: Song 1. The busiest day was 2017-09-03 (1), and the most frequent artists were 우원재 (1). YouTube entries come from the daily 05:35 KST RSS sweep of 36 official channels, so only premieres after tracking began appear; Apple Music dates cover songs that reached the Apple top 100; the Wikipedia list is album-level and may not link to a song page.
| Song | 시차 (feat. 로꼬 & 그레이)우원재 | Apple Music |