A man starts playing a piano. Neighbors hearing the music begin dancing, and are drawn to the music, dropping what they are doing to join the impromptu dance party.A man starts playing a piano. Neighbors hearing the music begin dancing, and are drawn to the music, dropping what they are doing to join the impromptu dance party.A man starts playing a piano. Neighbors hearing the music begin dancing, and are drawn to the music, dropping what they are doing to join the impromptu dance party.