I am visiting Roma next month, and would love to find a classical concert to attend. Any ideas on where to find one in a church or small concert hall.....
Look on the doors of any church. If they are having a concert there will be a paper posted on the door giving the details of time, date and selection of music. Most are free.
The ruins of the "Teatro Marcello" make for a unique background for summer concerts:
http://www.classictic.com/en/Teatro-di-Marcello-Roman-Nights/10085/93920