The Happy Piano 

Once upon a time, in a bustling city filled with towering buildings and honking cars, lived a small, cheerful piano. Unlike the grand pianos that graced concert halls or the sturdy uprights that filled music schools, this piano was a modest, upright model that resided in a cozy apartment.
Despite its humble size, the piano had a heart as big as the world. Its keys were always eager to sing out joyful melodies, and its sound filled the apartment with a warm, inviting glow. The piano loved to play along to the radio, to accompany the singing of its human friend, and even to simply hum its own happy tunes.
One day, a young girl named Lily moved into the apartment with her family. Lily was shy and often felt lonely. But when she heard the piano's cheerful melodies, her heart filled with joy. She would sit on the piano bench and press the keys, exploring the different sounds she could create. The piano seemed to understand her, and its music would always make her smile.
As Lily grew older, so did her love for the piano. She learned to play beautiful songs, and her music filled the apartment with a sense of peace and happiness. The piano was more than just an instrument to her; it was a friend, a confidant, and a source of endless joy.
And so, the happy piano continued to fill the apartment with its cheerful melodies, bringing joy to everyone who heard its music. For as long as there was music in the world, the happy piano would be there to share its joy with all.