Translation of "Blues" in Japanese

I often get the blues.

憂うつな気分によくなります。

I have the blues today.

今日は憂鬱な気分だ。

This is my Berlin blues song.

これは私のベルリン・ブルース

And this song is called "Berlin Blues,"

この歌は「ベルリン・ブルース」と言います

- Blues singer and guitarist Robert Johnson would have been 100 years old on May 8th of 2011 if he hadn't died when he was 27 years old.
- Blues singer and guitarist Robert Johnson would've been 100 years old on May 8th of 2011 if he hadn't died when he was 27 years old.

ブルース歌手のロバート・ジョンソンは、もし27歳で死去していなければ、2011年5月8日で100歳になっていたはずだった。