For five decades Delores Stevens has helped keep the Island in tune with classical music. She not only co-founded the Martha’s Vineyard Chamber Society, she played piano all those years for an untold number of concerts.

On Sunday, August 15 the society is celebrating Ms. Stevens with a celebratory concert at the Old Whaling Church. The sextet of performers includes violinist Melissa White of the Harlem String Quartet; Scott Woolweaver, principal violist of the Boston Pops Esplanade Orchestra; renowned violinist Stephanie Chase; cellist Scott Kluksdahl; violist Noah Fields; and French Horn player Paul Stevens.

The sextet will perform works by Bach, Britten, Dvorak and Mozart.

Ms. Stevens arrived on the Island for her first concert in 1971, performing as part of the Montagnana Trio with Caroline Worthington and John Gates. After that taste of Island life and culture she decided to call the Vineyard home each summer, helping to create the Chilmark Chamber Concerts which would become the Martha’s Vineyard Chamber Society.

Ms. Stevens began playing the piano at age four, in her hometown of Kingman, Kans., and never stopped. The Vineyard is all the better for it.

The concert begins at 4 p.m. on Sunday and there will be a post-concert reception with the musicians