Rain

Most of the songs, including track production, are done on the iPhone.
Some of the songs and raps are in the original language.
When I saw people and cultures listening to music overseas that was popular even if they did not understand the meaning of the lyrics, I began to think, "Then the lyrics do not have to be meaningful from the beginning.
He composes not with his voice (words) as a "tool to deliver lyrics" but as a kind of musical instrument or background music.
This is also the origin of the artist name UnLanguage.
He also hopes to eventually be able to produce himself, including music video production and album jacket production.