Singer-songwriter Regina Spektor just lost her father, Ilya Spektor, a photographer, amateur violinist — and Spektor’s number one fan. The Jewish musician, who canceled her show at Carnegie Hall in New York City this week after Ilya’s passing, penned a moving message about her father which she shared with her fans and followers on Instagram. “There aren’t enough words or tears to express the boundless loss we all feel having lost my beautiful papa,” Spektor, who has one son with her husband, Jewish musician Jack Dishel, wrote . “This morning the shiva ended,” she continued. “I’m so grateful for all...