Eternal Sonata Unlockables (Xbox 360)

Eternal Sonata is an original RPG created by tri-Crescendo, one of the developers of Baten Kaitos and Baten Kaitos Origins. The story takes place in a dream world which centers around famed piano composer Frédéric Chopin, who died at the age of 39 due to tuberculosis. The plot centers around the concept that three hours prior to his death, Chopin dreamed of a fairy-tale land, in which people with incurable diseases have great magical powers.

In the dream world, Chopin meets a young girl in the Village of Tenuto, Polka, who also suffers from an incurable disease. Eternal Sonata features a battle system centered around musical elements and character-unique special attacks. Light and darkness play a part in the appearance and abilities of enemies on the battlefield, as well as the types of magic that can be cast.

Unlockables

Xbox 360 Achievements
Many of these Achievements can only be unlocked while playing the Encore and due to many being story related, SPOILERS may ensue. There are 22 achievements worth 1000G and all are secret.

Claves's Resurrection (50G) - Collect all 7 pieces of Claves's Soul

EZI Worshipper (321G) - Collect all EZI items in the game

Fantaisie Impromptu (10G) - Complete chapter 3

Grand Finale (70G) - Defeat Frederic with Claves unlocked

Grande Valse Brilliante (10G) - Complete chapter 4

Heaven's Mirror (10G) - Complete Final chapter: Heaven's Mirror

Hero's Gate (30G) - Use the Hero's Crest to open the way to Mysterious Unison

Heroic (10G) - Complete chapter 7

Nocturne (10G) - Complete chapter 5

Party Level 2 (10G) - Obtain party level 2

Party Level 3 (10G) - Obtain party level 3

Party Level 4 (10G) - Obtain party level 4

Party Level 5 (10G) - Obtain party level 5

Party Level 6 (20G) - Obtain party level 6

Pirate's Treasure (80G) - Finally obtain Dolce's treasure

Raindrops (10G) - Complete chapter 1

Revolution (10G) - Complete chapter 2

Rondo's Return (50G) - Defeat Rondo in Mysterious Unison

Score Piece Collector (100G) - Collect all 32 Score Pieces

Soul Released (79G) - Free Chord's Soul from Fort Fermata

Tristesse (10G) - Complete Chapter 6

Xylophone Treasure (80G) - Use your orb to open the secret door in Xylophone Tower

The trailer of a very beautiful game: