 As dissolute as the circle appeared to the world, Liszt felt himself responsible for the boy's moral as well as his professional development and Cohen was touched when Liszt gave him a Bible.Cohen felt a deep religious experience in the course of one trip, when Liszt played an improvisation of the "Dies Irae" from Mozart's "Requiem" on the Grand Organ of the Cathedral of St. Nicholas in Fribourg.In 1837 Liszt and his circle returned to Paris, where the princess had arranged for a famed competition between him and his greatest rival of the period, Sigismond Thalberg.