Act 23: In Order to Awaken Her Guardian Powers, Rei Sings (戦士の力を目覚めさせるため、うたうレイ　/ Senshi no Chikara wo Mezame Saseru, Utau Rei)

00:41 Zoisite's Piano

This piece is Chopin's Etude Op. 10, No. 12
Known as "Revolutionary Etude" or the "Etude on the Bombardment of Warsaw".
Oddly though the music playing in the previous episode during this scene was the usual
"Fantaisie-Impromptu".

03:59 Zoisite's Piano

This piece is Chopin's Etude Op. 25, No. 11 known as "Winter Wind".

6:44 Sign reads:

South Juuban General Hospital

11:07 Book reads:

Making Studying Overseas a Success: Studying Overseas in England

11:46 Zoisite's Piano

This piece is Beethoven's Piano Sonata No. 14 in C-sharp minor "Quasi una fantasia", Op. 27, No. 2.
Also known as "Moonlight Sonata".

13:36 Rei's song

Sakura Fubuki
桜・吹雪
Cherry Blossom Tempest
Singer: Keiko Kitagawa (as Rei Hino)

A "sakurafubuki" (literally, cherry blossom snow storm) or "hanafubuki" (literally, flower snow storm),
though "hanafubuki" usually implies sakura anyway, is a specific term used in spring when flurries
of cherry blossom petals fly around all at once. The image of the cherry blossom is connected to the
ideas of Japanese tradition, so this song helps to underlie Rei's connection.