The event that takes place when a group of musicians find a piano at a school or house, suddenly or gradually "gathering" around the instrument. The result is each piano player showcsing their talents by playing their best piece(s), while the others watch and wait for their turn. Sometimes pushing and overthrowing of control for the piano takes play. Happens mostly around Asians.
For some "Piano Gatherers", who use the internet to learn the music, one song over and over in each gathering, maybe for years.
My plans with my friends were almost crushed when Josh started a Piano Gathering at my house, lasting for almost half an hour.
Every time we have a Piano Gathering, Tim always pushes to the front and plays the Beethoven Song he learned 5 years ago.