On June 18, Perseverance Hall opened as part of the New Orleans Jazz Historical Park in Armstrong Park—just a few years after its planned opening in 2008. Funding problems delayed the renovation of Perseverance Hall, which was built in 1819 or 1820 and served as a dance hall where African-American and white jazz musicians reportedly played for mixed audiences. Now it’s open on Saturdays from 9 a.m.-5 p.m. where it hosts “Music for All Ages," a free program for children to learn how to perform...