Duncan Sheik died at 56.

He was a singer and songwriter.

He won Tony and Grammy awards.

He wrote the music for "Spring Awakening."

He died Thursday night.

His Instagram page said this.

The post called him a special talent.

It called him a big voice in music and theater.

Sheik was famous for his song "Barely Breathing."

Then he went to Broadway.

He wrote "Spring Awakening."

The show was about teenage anger and sadness.

It started in 2006.

It ran over 860 times.

It won eight Tony Awards.

It won best musical.

It also won a Grammy.

The musical came from an old play.

Frank Wedekind wrote the play.

Steven Sater wrote the words.

Sheik also wrote musicals.

One was "American Psycho."

Another was "Alice in Wonderland."

"Barely Breathing" was on the Billboard Hot 100 for 55 weeks.

It reached No. 16.

In 2015, he talked to the Los Angeles Times.

He said his goal was simple.

Theater should listen to what the world listens to.

The first cast of "Spring Awakening" had Jonathan Groff, Lea Michele and John Gallagher Jr.

They later became famous on TV, in film and on stage.

A new off-Broadway version opens this fall.

His musical "Memoirs of Amorous Gentlemen" also opens.

Sheik leaves his parents, his wife Nora Ariffin, and a daughter, Ines.