As many other singers, writers and politically involved artists, Llach left Spain and lived in voluntary exile in Paris until Franco's death.

As a pianist, he shows a good knowledge of the European song tradition from Schubert to Hahn with touches of Satie ("Nounou") and his local imitators like Mompou and Manuel Blancafort ("A la taverna del mar").

Llach has used salsa piano patterns ("Terra") and jazzy whole-step block modulations ("El jorn dels miserables") and progressions ("Cançó d'amor a la llibertat").

Some early songs depicted some inspiration from Baroque dances ("Laura", "Jo sé", "Vinyes verdes vora el mar") and ostinato chord patterns ("Non", "Somniem").

He marked his retirement as front man in music with a farewell concert in Verges (March 2007), in Baix Empordà on the Costa Brava, the village in which he grew up.

[12] In July 2017, Lluis Llach stated that civil servants in Catalonia who continued to follow Spanish law after a future declaration of independence would be "penalised".