Composed between 1915 and 1918, it is dedicated to his close friend Manuel Blancafort. The straightforward and delicate emotional landscape of a child is skillfully expressed through simple writing, clear timbre, and delicate harmonies. The French music critic Émile Vuillermoz highly praised Mompou as "Debussy's successor" based on this work. The standard performance time is approximately 9 minutes and 30 seconds, and it is generally performed as a complete set.

1. Cris dans la rue / No.1 "Cris dans la rue"

Although no key signature or time signature is indicated, it is in C major, 3/4 time. Bar lines are almost entirely absent in the left hand. "Joyfully." From the beginning, the sound of parallel intervals rings brightly. This sound creates an impressive effect even in the middle of the piece. In the middle, the beautiful and gentle folk song "The Merchant's Daughter" is used. This reappears in the final movement.

2. Jeux sur la plage / No.2 "Jeux sur la plage"

Aeolian mode, 3/4 time. "Lively." The dissonant chord marked "Cri" (cry/shout) at the beginning seems to depict the boisterous laughter of children. The repetitive, monotonous rhythm evokes the image of children engrossed in their play. Long notes quietly support the tempo of the piece.

3. Jeu / No.3 "Jeu"

6/8 time, in an Aeolian mode style from G-sharp, "Lively." The opening section, marked "Cri" (cry/shout), begins with an unsettling augmented fourth interval. With the repeated quarter notes in the left hand, the music progresses in a circular motion in the right hand. In "Très vif" ("very lively"), the sense of meter changes due to the left hand, leading back to a quiet "cry."

4. Jeu / No.4 "Jeu"

Although no key signature or time signature is indicated, it is approximately in E minor, 3/8 time. The opening "Cri" represents a "whistle." After the unsettling sound of a diminished fifth, a figure like a disturbed heart is played "lively." This whistling section and the "lively" section are placed in contrast. The middle section features a sad song played quietly. The tenuto section is played questioningly and sadly.

5. Jeunes filles au jardin / No.5 "Jeunes filles au jardin"

Although there is no key signature, it is approximately in E minor. The time signature begins in 3/4 and shows subtle changes. The leisurely tempo suggests not so much children as somewhat mature young girls. The delicate, gentle, calm, and warm atmosphere of the piece is charming, but within it, the brilliant sounds that ascend and descend stand out. The folk song "The Merchant's Daughter," used in the first piece, is heard again.