Idol – Oshi no Ko OP [Piano] / YOASOBI

It’s been a while, everyone! I arranged one of the most interesting anime songs of this season, “Idol” by YOASOBI. The first episode of “Oshi no Ko” was absolutely legendary and it’s probably one of the best story introductions I have ever seen.

The OP “Idol” pairs up with the anime very well, since the lyrics retells Ai Hoshino’s ̶l̶i̶e̶s̶ rise to stardom and her sufferings perfectly. I tried my best to capture the atmosphere on the piano as well.

① “HAI! HAI! HAI! HAI!” 🧨🎆🧨🎆
I absolutely love the background shouts of the original song, which is an essential element in any idol concerts. You can hear it in my arrangement as a secondary melody in 0:49, 1:09 and 3:03. In fact, after listening to “Idol” many times, I can’t help but shout the “HAI! HAI! HAI! HAI!” as well – it’s simply too addicting.

② Rap 1: The jealousy of the other members (fast “Beethoven” runs)
I tried to use some classical piano techniques to make the rap sound a little bit more melodious on the piano. It was important for me to represent the dark emotions of the song lyrics as much as possible with my classical style arrangement.

The alternating minor scale in 1:19 is inspired by a Beethoven Sonata, but it also perfectly mirrors the rapping rhythm of the original song. The chord progression has also been modified in 1:26 (Am-C-F-E) to add a little bit more spice to the music.

Since the rapping is getting more intense in the second half, I switched to fast arpeggio runs in 1:31. I really like the chord progression (Am-G#-G-F#) of the first verse in 0:32 and that’s why I decided to reuse it here again.

③ Rap 2: Ai’s strong will and resolution (slow “Bolero” drums)
For the final rapping part in 2:05, I wanted to emphasize the drums beats of the original song and didn’t include any main melody this time. I think it builds up the suspense very nicely and it serves a good musical contrast with the chorus. I also slightly extended the phrase in 2:28 as well to give the bridge a more classical style closure.

⚠ [↓Spoiler alert for episode 1↓]

③ Ai’s first and last “I love you”
I feel like 3:14 is the true message of the song and that’s why I played the last part very carefully. Especially the final words “Aishiteru” 3:18 is played with a bit of portato articulation, as if Ai’s words are slowly fading. It was really touching to see how Ai has finally conveyed her true love to her children in her very last moment. Excuse me while I grab some tissues again… 😭

⚠ [↑Spoiler alert for episode 1↑]

Alright, that would be everything about this piano arrangement! Thank you so much for reading! It was really fun to translate the rap parts into the piano. I can’t wait to see how the story of “Oshi no Ko” develops after the legendary first episode!

With that said, I am already planning my next upload for this month as well!
See you next time then.

Animenz
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Sheet music download link:
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Piano arrangement by Animenz

Original Song: Idol
Anime: Oshi no Ko
Published by: YOASOBI (2023)
Composed by: YOASOBI (Ayase)
Performed by: YOASOBI (Ikura)
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Official Animenz Sheet Music Book (Published by YAMAHA)
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Digital Sheet Music:
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#oshinoko #idol #piano #yoasobi