Details: In 1997 in a working class neighborhood in North Hollywood, California, a new music school, owned by Omar Arroyo and Mario Yunis, opened and hundreds of parents soon signed up their children for the low cost lessons. Arroyo and Yunis hired several veteran instructors to teach the children the accordion. Yunis was a studio musician who was fluent in several languages while Arroyo was an up and coming salsa singer and used car salesman, but there was nothing unusual about their carefully crafty sales pitch. Yunis was charming and persuasive and worked with the parents while Arroyo worked behind the scenes, and the two sold parents different music lesson packages. Martha Gallardo brought one package for her daughter that included the purchase of an accordion, billed over a three year