The eighth entry in the Pretty Cure franchise.In the musical world of Major Land, peace is protected by the "Legendary Score" and the Melody of Happiness contained within. On the annual performance of the Melody of Happiness, the Score is stolen by the jealous king of Minor Land, Mephisto, who turns it into a Melody of Sorrow. To stop Mephisto from sucking the happiness from Major Land right then and there, the queen of Major Land, Aphirodite, scatters the Notes of the Score and sends them to Earth. She then instructs Hummy, the Songstress chosen to sing the Melody of Happiness that year, to go to Earth and retrieve the Notes before Mephisto can.Meanwhile, middle school sophomores and former childhood friends Hibiki Houjou and Kanade Minamino are recovering from yet another fight with each other when they encounter Siren, a former Songstress of Major Land who has defected to Mephisto's side. Siren attempts to take the G-Clefs within their hearts for the Melody of Sorrow, but accidentally triggers an amazing potential, causing the girls to transform into Major World's champions, Pretty Cure.As Cure Melody and Cure Rhythm respectively, it's now up to Hibiki and Kanade to work with Hummy and gather the Notes of the Legendary Score. However, it's not so simple: the Pretty Cure power is fuelled by The Power of Friendship, and the two former-friends have many, many issues that they need to work out first.The Pretty Cure Power Trio is later completed with the arrival of Cure Beat. Throughout the series, they also are joined by Aloof Ally Cure Muse, a mysterious masked fighter who helps out Pretty Cure but claims no affiliation with them.
Aerith and Bob: The names of the Major Land royal family... Aphrodite, Mephisto, and Ako. Though it's sometimes presumed that, when the last of these isn't hiding out on Earth with a name that wouldn't draw attention, it's normally written Aco, short for "acoustic".
Badass Family: In a musical sense. Hibiki's dad is completely immune to the Melody of Sorrow because he believes music should make people happy. Her mother goes a step beyond this and can actually counteract it with her violin. However, Hibiki's dad finally gave in a little against the Negatone in episode 41, though it can be justified that at that point, the Negatones have gotten more powerful for someone like him.
Also, the royal family of Major Land. One's a Precure, one was a major villain, one essentially gives the Cures their powers, and the last one...
Food Porn: Anything anyone from the Pastry Club (Kanade in particular) bakes might very well leave your mouth watering. Heck, a Japanese fan tried making the black spider cake from episode 4 in real life, and it came out pretty accurate.
Halloween Episode: Episode 37, but it does have plot relevance. Besides it features Cure Muse's moves, there are also Bassdrum and Baritone's Baleful Polymorph and Falsetto unsealing Noise from the stone.
Magic Skirt: In episode 2, the girls were hanged upside-down from the tree, yet their Precure and school uniform's skirts stayed as if they were standing on the ground.
Subverted with the Precure outfit, where their skirts are displaying Magic Skirt physics but their petticoats are actually some kind of puffy shorts.
Meaningful Name / Theme Naming: The first character in Hibiki and Kanade's surnames are the characters for North and South respectively, while Waon and Seika's have the characters for, respectively, West and East, which led to many fans guessing that they would become Cures later on (see Lying Creator on the Trivia page).
Hibiki and Kanade's first names are also significant and fit with the musical theme of the series. The term "hibiki" means a sound, a ring, or an echo. Used as a verb, it can mean to resound/resonate. The term "kanade" means to play or perform, such as with a musical instrument.
Ellen and Ako are named after Electric and Accoustic (as in, string instruments) respectively.
Mid-Season Upgrade: Taken to Lensman Arms Race levels. Melody and Rhythm gain three upgrades over the course of ten episodes: the Belltiers, Belltier Seperation, and Belltier Cross Rods. Then five episodes later Cure Beat joins, essentially acting as a fourth upgrade by joining in with their previous attacks.
In episode 30, the quizmaster Negatone asks Cure Rhythm and Cure Beat what "shiro" and "ao" means in English. Of course, it's because of their costume colors, but it's also a reference to Cure White's name; in Blue's case, it's an inverted example since he appears four seasons later after Suite.
Not So Different: Both Noise and the Cures' final forms are based on birds. Also, Cure Melody's "World of Cardboard" Speech for Noise is basically pointing him that they're fueled by the same source of power: happiness.
Pink Means Feminine: The initial flyer for the series went out of its way to point out that both mains wore pink in their Cure outfits, putting "girls' favourite color on full display".
Poor Communication Kills: Two at the same time in episode 6 — while Hibiki's trying to stand up for Kanade's brother Souta on what he was doing, both she and Kanade ignore Hummy who has found a Note and is trying to tell them about it.
This is also the reason we don't see Hibiki and Kanade get along in the first two episodes even though they are childhood friends. Hummy asks Hibiki why that is; and the latter responds that when they began middle school, Kanade was supposed to meet her at the third sakura tree from the school's entrance and never came. The misunderstanding came from the fact that the school has two entrances lined up with sakura trees. Both Hibiki and Kanade were waiting for each other at each entrance unaware of this fact. When they figure it out, they instantly forgive each other. Siren responds to this with the Lampshade Hanging above.
Pun-Based Title: Suite means "a group of related pieces of music or movements played in sequence." It sounds like sweet, and as it happens, Kanade is in her school's pastry club and her family owns a pastry shop.
Ship Tease: Episode 38 is absolutely loaded with Souta/Ako ship tease, although there's been small hints here and there beforehand like the previous episode..
Shout-Out: Siren's feathery neon-colored outfit in episode 5 is one to the Brazilian carnival. Maybe done on purpose, since the Brazilian carnival was being celebrated in the week the episode aired. The "butterfly-like ribbon" on her chest is also a Mythology Gag to Yes! Pretty Cure 5.
Stealth Pun: Hummy and Siren, the fairies that can sing the Melody of Happiness (or Sorrow), are cats. Typically, caterwauling is defined as particularly awful singing. Doubles as an Incredibly Lame Pun.
Talking the Monster to Death: Muse did it twice to Mephisto in episode 36. The Cures attempted this to Baritone and Bassdrum in episode 42, but failed as Falsetto quickly re-brainwashed them. And finally the Cures defeated Noise in this way, all while launching every single finishers they have.