Yumi Arai - Hikō-ki Gumo
Kaze Tachinu - Hikoukigumo [Romanization]
https://www.youtube.com/watch?v=bI9L0x8KOKs
Credits:Film: Kaze Tachinu (Studio Ghibli)Music: Arai YumiPerformed: Matsutoya Yumi
I've learned of Yumi Matsutoya (松任谷由実) / Yumi Arai by real name from the anime The Wind Rises (Kaze Tachinu).
I don't normally watch anime, but big studios like Gibli and directors like Hayao Miyazaki are the exception. A few songs from Yumi made to my playlist since then.