Mezzo Piano (メゾ ピアノ Mezo piano) is a popular fashion line in Japan aimed at young girls.
In Tamagotchi[]
One of the cross-over characters in the Tamagotchi 17th Anniversary Contest was Kiraritchi combined with the mascot of the Mezzo Piano brand. Furthermore, there is a Mezzo Piano case for the Pocket Designer.
Tamagotchi Channel also promotes Mezzo Piano on their home page.