Over the past 20 years, Mulvey has pursued an eclectic path as a writer and musician, performing on the streets of Dublin, the subways of Boston and now, touring as a headliner for an audience that stretches around the globe. Whether performing solo, duo (with David Goodrich), or with a band, Mulvey attempts to be the sum of his parts, to draw on all the musical legacies he has studied, to make a fresh, vital moment from everything he and the audience have brought to the table that night. The...