In 1992, he married Michala Petri with whom he has given over 1,500 concerts and made numerous recordings. They divorced in 2010 although they still perform together. Together they founded the record company OUR Recordings. Hannibal has also performed with a number of other artists including the violinist Kim Sjøgren, the trumpeter Michael Brydenfelt and latterly the Chinese violinist Tina Chen Yi. He has taken a special interest in China where he organized a Gala Concert in the Danish Pavilion at the 2010 Shanghai World Expo. His project Dialogue—East meets West encourages artistic discussion between Denmark and China.