The insatiable demand for sheet music for domestic use in the 19th century meant that popular works were widely disseminated in piano duet form. Robert Schumann’s own arrangements of the ‘Spring’ Symphony (in collaboration with his wife Clara Schumann) and the Fourth Symphony balance playability and fidelity to the original with tremendous skill. Clara considered the Fourth Symphony to be ‘another work from the innermost depths of Robert’s soul’, a symphony that has become one of the most quintessential of the Romantic era.