Demos and Pilots
Listen to song demos, early pilot snapshots, and later improvements in one place.
Demos
Short song demos illustrate the system in fuller musical contexts via the Duolingo music course. Open any preview for a larger player that keeps notation and keyboard details readable.
Please Don't Go
Simple Gifts
Are You Lonesome Tonight
Effortless Flight
The Blue Danube
Danny Boy
Hard Time Come Again No More
Adagio Cantanbile
Symphony No. 40
The Bluebird
Greensleeves in B Minor
Kill for Your Love
Sea Shanty
Pilot 1
Pilot 1 - the Very First SingLet Pilot Worldwide
This first pilot brings SingLet into real teaching settings through two highly experienced music educators whose classroom and studio work spans thousands of learners.
Mr. Chaogang Gong
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Mr. Chaogang Gong graduated from the Music Department of Luoyang Normal University. A secondary-school music teacher and piano-studio founder, he has devoted 39 years to piano education and has taught more than 5,000 students, making a lasting contribution to music and arts education in his local community.
Mrs. Cuili Yang
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Mrs. Cuili Yang graduated from the Music Department of Henan University. She is a senior primary-school music teacher with 35 years of teaching experience and has guided thousands of students, building deep, long-term impact through sustained music education.
Pilot 1 Snapshots
These early classroom and learner samples are meant to show the project in use. They are pilot snapshots, not polished curriculum recordings.
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MARCH 17, 2026
Snapshot 1: 滴滴滴心里嘻嘻
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An early learner phrase from the opening Pilot 1 session.
02
MARCH 17, 2026
Snapshot 2: 新agaabc在北京
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A short classroom-style phrase that lets visitors see the notation and hear the matching pilot audio together.
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MARCH 17, 2026
Snapshot 3: 20260317P1.13
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A clearer notation-reading moment that connects the visual line on the page to the sung result.
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MARCH 17, 2026
Snapshot 4: Amazing Grace
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A later same-day pilot example showing another notation-and-audio pairing from the opening round.
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APRIL 12, 2026
Improvement spotlight
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A later recording that shows a more confident result, presented as a cleaner comparison against the first round.
Full song
Amazing SingLet
Amazing SingLet is a respectful parody of John Newton's Amazing Grace by Dr. Fuping Zhu in 2025.
May 26, 2026 video
Full-song recording
This recording was made on May 26, 2026.
Follow-along: Keyboard follow-along across the C, G, A, and B-flat major sections of the full parody.
SingLet™ syllables:
The highlighted keys track the melody timeline in silent mode for now.
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Full playback
Ready