The title Mountain Nights (Hegyi Éjszakák) is explained by the music, and expresses the composer's deep love for mountains - in particular the Tatra, Mátra and the Swiss Alps - among which he spent so many enjoyable holidays during his long life. "Mountains", he told his biographer Lászlo Eösze, "have their own songs". These are five songs for female choir with piano accompaniment for rehearsal only.