その歌を

that song

→ 其の
phrase Uncommon #13,267
that song その歌 means “that song,” and を marks it as the direct object of the following verb. The phrase is usually part of a larger sentence.
JA: その歌を毎朝聞いています。
EN: I listen to that song every morning.

その歌を英語で歌いましょう

Let's sing that song in English.

その歌を聞く若い頃を思い出します

That song reminds me of my younger days.

どうやってその歌を知った

How did you hear about that song?

— ソング・オブ・ザ・シー 海のうた (2014)

その歌を聞くといつも子供の頃を思い出す

Whenever I hear that song, it reminds me of my childhood.

どうかその歌をもう一度歌ってください

Please sing that song one more time.

私はその歌を歌いたい

I want to sing that song.

その歌を聞いて私は子供時代を思い出した

Hearing that song brought back memories of my childhood.

トムその歌を絶対に歌わないだろうね

Tom definitely won't sing that song.

その歌を聞くある少女を思い出す

That song reminds me of a certain girl.

前にその歌を聞いた事がある

I've heard that song before.

その歌をもう一度聞きたいです

I want to listen to that song again.