As a Mozart historian, K. Lynette Erwin is recognized as an authority on the life and career of Anna Storace, for whom Mozart created the role of Susanna in Le Nozze di Figaro in 1786. She has performed numerous historic portrayals of the soprano in Oklahoma and Kansas public schools and recitals. She also has an educational research website about Anna, Anna "Nancy" Storace: Mozart's First Susanna.

Lynette earned a Bachelor of Music degree in Vocal Performance and Church Music from Oklahoma Baptist University in 1982 and a Master of Music degree in Vocal Performance and Pedagogy at Oklahoma State University. She specializes in the performance practice of the late Baroque and Classical eras and is a member of the National Association of Teachers of Music (NATS) and teaches voice privately.

She has extensive experience in musical theater, opera, and operetta. Her various roles include Laurie in Oklahoma!, Josephine in Gilbert and Sullivan's HMS Pinafore, the Sorceress in Purcell's Dido and Aeneas, and Katisha in Gilbert and Sullivan's The Mikado. Her Mozart roles include Zerlina in Don Giovanni, Despina in Così fan tutte, and the Third Lady in The Magic Flute. She has also studied the roles of Susanna and Countess Almaviva in The Marriage of Figaro and has performed vignettes of these roles in various performances. In 1999, she was featured as the soprano soloist in Mozart's Requiem at the OK Mozart International Festival.

Lynette currently performs with the Stillwater Chamber Singers and lives in Stillwater, OK with her partner S. K. Waller. Between them they have five grown children and an exceptionally excentric, opera-adoring cat.