| 100% | OVERTURE | 8 | Piece of music played at the start of an opera |
| 58% | FANFARE | 7 | The piece of music played before an announcement |
| 53% | ENTRACTE | 8 | Piece of music performed during an interval between two acts of a play or opera |
| 51% | HTTP | 4 | Letters at the start of an address? |
| 51% | KPOP | 4 | Genre of music played at the opening of the 2018 Olympics, familiarly |
| 50% | BATTERUP | 8 | Umpire's call at the start of an inning |
| 50% | ROAR | 4 | Sound heard at the start of an MGM film |
| 50% | LION | 4 | Animal seen at the start of an MGM film |
| 50% | AAR | 3 | Swiss river at the start of an alphabetical list |
| 50% | SKIPINTRO | 9 | Clickable message at the start of an online TV show |
| 50% | ROAR | 4 | Sound at the start of an M-G-M film |
| 50% | LIBRETTO | 8 | The words of an opera or musical play |
| 49% | OBOE | 4 | Sounder of the tuning note at the start of an orchestra rehearsal |
| 49% | ONTO | 4 | Run ___ the field (what players do at the start of an inning) |
| 49% | WHERETHERESAWILL | 16 | *Nero Wolfe title that plays on the start of an old adage |
| 49% | USS | 3 | Letters at the start of an American navy vessel's name: Abbr. |
| 49% | OVERTURE | 8 | Introductory music at the start of a performance |
| 48% | ROOK | 4 | Corner piece at the start of a chess game |
| 47% | PRELUDE | 7 | Short piece of music introducing an opera |
| 46% | QUEENSROOK | 10 | Chess piece four squares from the king at the start of the game |
| 46% | NUN | 3 | What Maria is planning to become at the start of "The Sound of Music" |
| 46% | SNAP | 4 | What a center will do to a football at the start of a play |
| 45% | INTRO | 5 | Instrumental passage at the beginning of a piece of pop music |
| 45% | TENNISCOURT | 11 | Playing area usually having one of the surfaces seen at the starts of 16-, 28- and 43-Across |
| 43% | PRELUDE | 7 | Musical piece preceding a fugue or forming the orchestral introduction to an act of an opera |
| 42% | IDEA | 4 | The start of an invention |
| 42% | ONSCENE | 7 | At the site of an incident |
| 42% | ADDIN | 5 | Piece of software that expands the functionality of an existing program |
| 42% | PASTORALE | 9 | Piece of music that evokes the countryside |
| 42% | SITSKI | 6 | Piece of equipment seen at the Paralympics |