Do ては and のは have the same meaning sometimes?


I was listening to a song
([ロジックエージェント](https://www.kkbox.com/jp/ja/song/qgNfT2IDoQM5WOQc5WOQc0PL-
index.html)) and these lyrics came up:

> 枯れ **ては** 戸惑いを募らせて  
>  遠く揺らぐ日々を眺めてた

I assume that **ては** means 枯れる **のは** 。

Is that correct?

I know **ては** can mean If/When but I don't think this is the case here. Some
other parts of the song say 重ね **ては** 声, which to me sounds like 重ねるのは声.




As pointed out in the comment section, this ては should be part of the [AてはB
construction](https://japanese.stackexchange.com/q/41658/5010). The first line
says every time something "withered" or "ran out", this person have grown
his/her mental discomfort/confusion.

So what is the subject of 枯れる? The lyrics have nothing to do with growing
plants, so I guess the subject of 枯れる is his/her memory or passion. 枯れる can be
used with words like 涙, 思い and 情熱 as the subject. The lyrics of this song are
fairly vague, but I can say this person is gradually losing past memories with
君.

