Welcome to the website for the Oak Park Alumnae Chapter in Gamma B Province, Region V of Sigma Alpha Iota International Music Fraternity.  Headquartered in Oak Park, Illinois, the chapter is made up of a diverse group of talented women from throughout the Chicago area. We love to be together to perform, hear music and organize for music related philanthropies.

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Sigma Alpha Iota is an International Music Fraternity created to uphold the highest standard of music and to further the development of music in America and throughout the world.