Key West | Key West, Florida | Key Club | Francis Scott Key | Key Biscayne | Key Largo | John Key | Key Largo (film) | Key | Chroma key | Key West, Iowa | Key Stage 3 | Key of Solomon | Chroma Key | The Skeleton Key | theoretical chemistry | Public key certificate | Key Stage 2 | Key (company) | Internet Key Exchange | theoretical computer science | The Glass Key | Philip Barton Key | key | Kavli Institute for Theoretical Physics | Gold Key Comics | Cedar Key | Theoretical Computer Science | Theoretical computer science | Theoretical chemistry |
The second movement from Charles-Valentin Alkan's Grande sonate 'Les quatre âges', subtitled Quasi-Faust, is also in D-sharp minor (but ends in F-sharp major), and modulates into even sharper keys along the way, some even being theoretical keys, such as G-sharp major and A-sharp major.