Fairy Tones

The Fairy Tones (フェアリートーン) are special jewel-like items that are used by the Pretty Cures. These fairy-like jewels gives either Cure Melody, Cure Rhythm, Cure Beat, or Cure Muse their abilities and powers when used by inserting them into their Cure Modules or Belltiers.

Abilities and Powers
All the Tones have a multi-faceted jewel on their heads, and look identical except for their color and powers. They are inserted into the Cure Modules when the Pretty Cure transform, but are able to leave the Cure Module and move around after the transformation. When a Negatone is defeated and the Cures and Hummy purify the notes, they are stored in the Tones (the notes are stored in different Tones each time). They are also able to disable the musical staff created by the Minor Land team by attaching to the staff and playing their respective notes. Aside from sounding out their own notes, they can speak normally and also imitate the sound of other instruments (they have imitated windchimes, the school bell and a whistle throughout the series). All address themselves as "boku", and have slight differences in their speaking voices.

Revealed Fairy Tones
There are a total of nine Tones. Aside from Dodory and Crescendo Tone, the other seven were revealed at the start of the series. The eighth is seen on Cure Muse's shoulder in the opening sequence and the ninth is seen during the 2nd PV of the Suite Pretty Cure movie and in some episodes of the series. The first eight Fairy Tones are children while Crescendo is an adult.

Trivia

 * This is the sixth set of fairy-like creatures in the series. The first are the Heartiels in Futari wa Pretty Cure Max Heart, the second are the spirits in Futari wa Pretty Cure Splash Star, the third are the Pinkies in Yes! Pretty Cure 5, the fourth are the Palmins in Yes! Pretty Cure 5 GoGo!, the fifth are the Pickruns of Fresh Pretty Cure!
 * Each of the Fairy Tone's names are based on music, most notably the Solfège scale. Their names include the solmizations: Dory, Rery, Miry, Fary, Sory, Lary, Tiry, Dodory.
 * For some reason, Fary's arms are shorter than the rest of the Tones, making it unable to cross its arms, as seen in Episode 16.
 * Crescendo's name in music, means becoming stronger. That is a reference, that Crescendo will upgrade the Precure into their final forms.