A native New Orleanian, Ethan is a working composer, lyricist, and music director in New York City and across the county.
"Andersen is a smart writer. He knows how to write an incredible song." (Theater in the Now). Ethan's songs are "nimble across a variety of styles, from musical scenes and frothy uptempo to vampy torch and searing heartbreak." (Talkin' Broadway).
In 2016, Ethan's children musical, Rootabaga Express!, premiered at Flat Rock Playhouse and is produced every summer at the Carl Sandburg Home National Historic Site. Ethan's new musical, YOUlogy, received an industry reading starring Lianah Sta. Ana and Conor Ryan in May 2018. In 2019, Ethan adapted the popular children's phonics program, Letterland, used in classrooms across the country and predominantly in England into a musical which toured the North Carolina school system.