ARGYLE - In celebration of the 500th anniversary of the Protestant Reformation, the Association Free Lutheran Bible School Concert Choir of Minnesota will present a choral concert at 4 p.m. Saturday at the Argyle High School auditorium, 14665 Wisconsin 78. The concert will feature music by composers like Johann Sebastian Bach as well as Minnesota composer Josh Bauder. The songs focus on five themes: Scripture alone, faith alone, grace alone, through Christ alone and glory to God alone.