Their music can be divided into three basic types: * Traditional children's songs, whether native or international; * Covers, or songs in which the melody is borrowed from a popular song (often from the English-speaking world) but the lyrics are unrelated; and * Original songs invented by the group. This accounts for the largest number of songs, especially in the more recent releases. In all cases, the lyrics in the songs are upbeat and playful, and their music has been likened to bubblegum pop.