He spent his childhood painting, reading poetry, and studying music with prominent teachers, including G. Matthison-Hansen.
After a year, however, his father decided that he should follow his professional path and enrolled him in Copenhagen University to study political science.
For the next quarter of a century, Lange-Müller produced a huge quantity of music, comprising some seventy-seven opus numbers.
However, he suffered from severe migraines (later linked to chronic eye disease), which made working at length very difficult for him.
Of his larger works, he completed two symphonies, a violin concerto, and an orchestral suite (In the Alhambra) which are still performed today.