Once Upon a Time (from “Brooklyn”)

“Once Upon a Time” is from the 2004 Broadway musical Brooklyn by Mark Schoenfeld and Barri McPherson. The story follows a group of five homeless musicians in New York City who put on a play about a singer named Brooklyn under the Brooklyn Bridge in New York. The original production ran for 284 performances.

The track, which features Eden Espinosa in the lead role, begins in Bb and shifts up a half step to B at 2:14.

Celine Dion | All By Myself

Eric Carmen’s 1975 song “All By Myself” was made famous by the Canadian singer Celine Dion, who included her cover on the 1996 album Falling Into You. Producer David Foster also added a modulation to the song, which has become one of the most iconic key changes in pop music (it is at 2:48.) The track reached #4 on the Billboard Hot 100 chart and became one of Dion’s biggest hits.

In December 2023, Dion announced she had been diagnosed with stiff-person syndrome, a rare neurological condition that has made it difficult to sing. A documentary, I Am: Celine Dion, tracing Dion’s journey with the disease, was released on Prime Video last month.

Jeremy Jordan | If The World Looked Like You

Will Reynolds’ song “If The World Looked Like You” is performed here by Jeremy Jordan at a “Songs You Should Know” concert, presented at the Laurie Beechman Theater in New York City in 2012. The song begins in A, briefly passes through C at 1:38, and modulates to Db at 1:47.

Andrea Bocelli | Mi Mancherai

“Mi Mancherai,” (which translates to “I’ll miss you”) is from the critically acclaimed 1994 Italian movie The Postman. Composer Luis Bacalov won the Academy Award for Best Original Score, and the film was also nominated for Best Picture, Best Director, Best Actor, and Best Screenplay.

Italian singer Andrea Bocelli included the song on his 2015 album Cinema, which features classic film soundtracks and scores. The track starts in D and modulates briefly to Bb at 1:51 before returning to D at 2:28. After an instrumental interlude, the vocal returns at 2:56 again in Bb. There is a final modulation to Eb at 3:30.