| Answer | Crossword Clue |
|---|---|
| CMAJ | Key of Beethoven's Piano Concerto No. 1 |
| EMINOR | Key of Chopin's Piano Concerto No. 1 |
| BMINOR | Key of Tchaikovsky's Piano Concerto No. 1 |
| DFLAT | Key of Prokofiev's Piano Concerto No. 1 |
| BFLATMINOR | Key of Tchaikovsky's Piano Concerto No. 1 |
| EFLAT | Key of Liszt's Piano Concerto No. 1 |
