Subject
Songs (High voice) with orchestra
4
Operas
3
Songs (High voice) with piano
3
Quantum theory
2
Complementarity (Physics)
1
Concertos (Piano)
1
Correspondence principle (Quantum mechanics)
1
Europe Languages
1
Folk music
1
Folk songs, Danish
1
Folk songs, German
1
National songs
1
Nuclear physics History
1
Physics
1
Science Philosophy
1
Science Political aspects
1
Science Social aspects
1
Songs (High voice) with instrumental ensemble
1
Songs (Medium voice)
1
Songs (Medium voice) with piano
1
Vocal duets with orchestra
1