In 2011, Whitacre released a video for "Sleep" featuring 2,051 singers from 58 countries. These singers never met or rehearsed together in person; instead, they recorded their individual voice parts while listening to a conductor track on their computer screens. The resulting video, compiled from thousands of submitted MP4s and PDFs of the score, went viral, cementing "Sleep" as the anthem of the digital classical age.

If you want to prepare this piece for your ensemble, tell me:

The most direct source. GIA Music offers a "Digital Print" option for "Sleep." You pay for the number of copies you need (e.g., 1 score for the conductor, plus 20 individual choral scores). They offer:

The most common version of "Sleep" is the one with Charles Anthony Silvestri's poem. This is the official, published score that most choirs use. It is protected by copyright and from authorized distributors.

Devastated by the prospect of the piece never being published, Whitacre turned to his frequent collaborator, poet . Silvestri was tasked with writing a new poem that perfectly matched the meter and vowel structure of the existing music. The result was "Sleep," a poem that shifts the setting from a snowy forest to a more intimate, psychological journey into the unconscious. Interestingly, as of 2025, the original Frost poem has entered the public domain, allowing Whitacre to finally release the original "Stopping by Woods" version. Musical Analysis and Texture

The Extraordinary Backstory: From Robert Frost to Charles Anthony Silvestri

He’d downloaded the PDF on a whim—a footnote in a paper about choral resonance and parasympathetic response. The title page was elegant, minimalist: Sleep (2000), text by Charles Anthony Silvestri. But it was the second page that hooked him. A handwritten note in the margin, scanned in ghostly grey: “Breathe in four, out four. The silence between the chords is where the real rest begins.”

He looked back at the PDF. Silvestri’s text was a poem about dusk, about “the velvet of the dark,” about giving permission to cease. But the real instruction was Whitacre’s own, hidden in the score’s dynamic markings: ppp (pianississimo, very very soft). Senza misura (without measure). Niente (nothing).

“Sleep” took on new life in 2011 as the centerpiece of Eric Whitacre’s Virtual Choir 2.0. The idea originated when a teenage girl, Britlin Losee, posted a YouTube video of herself singing “Sleep”. This inspired Whitacre to invite singers from around the world to record themselves singing individual parts. The result was a breathtaking mosaic of — ranging from nine-year-olds to senior citizens.

The piece is famous for its closely spaced seconds and major/minor seconds stacked on top of one another. This creates a shimmering, "warm wall of sound" effect.

Alternatively, purchase the physical octavo (which often comes with a download code).

To ensure high-quality, legally produced performances, it is important to purchase authorized sheet music.

Whitacre invited vocalists from all over the world to record themselves singing their respective parts (Soprano, Alto, Tenor, Bass) alone in front of their webcams. The videos were compiled, synchronized, and edited together into a massive, unified performance. Virtual Choir 2.0 featured , creating a viral sensation that proved the power of digital choral community and brought Sleep to millions of new listeners. How to Legally Access the Sleep PDF and Sheet Music

Silvestri locked himself in a room and meticulously crafted the poem "Sleep" , substituting Frost's winter journey with a surreal, comforting exploration of sleep, dreams, and letting go. The substitution was seamless, and the version we know today was born. Analysis of the Music and Text

So, download your legal copy. Gather your singers. Dim the lights. And let the music carry you into that beautiful, necessary darkness.

Once you have the official PDF in your hands, what can you expect to see? The piece is deceptively simple visually but aurally complex.

"Sleep" is a prime example of the "Whitacre Sound"—a blend of lush, major-second dissonances that resolve into rich, resonant chords.

Shortly after the premiere, Whitacre ran into a major legal roadblock. While he believed the poem was in the public domain, Robert Frost’s estate still held the copyright. The estate strictly refused to grant Whitacre the publication rights for the musical setting.