Two operatic soloists will perform at a memorial concert Thursday for Robert Vehar, music teacher and choral director at Clarence High School, who died last December.

The program begins at 7 p.m. in Kleinhans Music Hall.

Both are graduates of the school with which Vehar was associated from 1966 to 2001.

Baritone Jeffrey Snider, chairman of vocal studies at the University of North Texas, and soprano Laura Aiken of Italy, will perform along with the school’s choirs, Alumnus Chorus and bands in the free event open to the public.