I have two tickets to an Atlanta Symphony Orchestra concert on February 18, at 8 pm, at Symphony Hall. I just found out that I cannot use them. They are row R, Orchestra Left, seats 11 and 12. I paid about $80 for them, and am asking $40 for both, OBO. This is an ASO “Pops” concert featuring the music of the folk-rock duo Simon and Garfunkel. The ASO with vocalists AJ Swearingen and Jonathan Beedle will sing some of their greatest hits, including The Sounds of Silence, I Am a Rock, Bridge Over Troubled Waters, Mrs. Robinson, Cecilia, and many more.