B’way fans sing Sondheim’s high praises

Fans of Stephen Sondheim paid tribute to the Broadway songwriter outside of his namesake theater in Midtown Friday night, leaving flowers, notes and photos hours after his death was announced.

“He was so kind, so sweet,” said Molly McQuilkin, 36, the house manager at the Stephen Sondheim Theatre who met the composerlyricist a few times.

“He definitely changed what musicals were and the stories they can tell. For me, it’s a segment of musical theater that the book will be closed on.”

Formerly known as Henry Miller’s Theatre, the playhouse was renamed after Sondheim in 2010 to honor his 80th birthday.

Andy Kosovych, 72, of New Jersey who was waiting in line to see the theater’s current show, “Mrs. Doubtfire,” called it “a sad day.”

“It’s weird that we are going to the theater on the day he passed,” he said.

Theater lover and Manhattan resident Brian Cummings, who was snapping photos of the memorial outside the theater, called Sondheim a “titan” of the industry.

“He’s up there with the greats, and it makes me smile to see this,” he said.

“He sort of created a whole genre, if you will. He’s the Elvis Presley of the American stage. He’s the Converse of rock-’n’-roll music.”

Actor Adam Chanler-Berat, who plays John Hinckley Jr. in the current off-Broadway revival of Sondheim’s “Assassins,” said he was “proud and sad” following Friday night’s performance of the musical at the Classic Stage Company on East 13th Street.

“He’s the reason why so many of us do this,” he told The Post.

“We’re just overwhelmed right now, and it’s a real honor to be able to be a part of this amazing production, and to be part of the legacy of his amazing body of work.”

Carissa Barry-Moilanen of Massachusetts, who saw “Assassins” for her 21st birthday, said it was “devastating” to hear about Sondheim’s death.

“He was the theater giant. He was like Shakespeare,” she said.