Instead of spending his Thursday afternoon negotiating a stock purchase agreement or working on a capital markets transaction, as would normally be the case, tax attorney Harry Ballan was in the New York City borough of the Bronx helping facilitate a therapeutic music session with a group of seven veterans.

As the now-retired Davis Polk & Wardwell partner explained it, his new job is to make sure that group members, many of whom suffer from post-traumatic stress disorder, have the right instruments to participate in the music circle and to give piano lessons after the session is over.