Director Matthew Heineman planted his flag with gritty, warts-and-all documentaries about warfare, drug cartels and the devastating impact of the pandemic. As such, the proposition for American Symphony — a beloved musician's journey to his Carnegie Hall debut — might seem like lighter fare.

But as Heineman expertly draws out, this is a whole other kind of battlefield.

From its first scenes, it's abundantly clear this is not just about Batiste's titular, boundary-bulldozing work from 2022. That story is twinned with a different kind of symphony — the one between human beings, loving one another through unimaginable duress. As Batiste labored over this expansive, freighted production, his wife, Between Two Kingdoms memoirist Suleika Jaouad, reckoned with the return of her leukemia. 

From Batiste's palpable panic to an (unshown) bed filled with blood, American Symphony is unafraid to stare this tribulation in the eyes, as it follows Batiste's inimitable creative process. Even as it builds to its crescendo, Heineman keeps it bracingly human-level — and the result is a triumph.

A week after American Symphony hit Netflix, Heineman and Batiste sat down with the film's co-producer, Lauren Domino, and moderator Joe McGovern of "The Wrap," at Brooklyn Academy of Music for a post-screening spin through the documentation process. Here are five revelations from the discussion.

Working With Jaouad's Health Was Beyond Delicate

First, it must be said: by Batiste's telling, Jaouad is "doing great" today — in fact, she had to miss the event, as she had just headed to Costa Rica. (In a sweet moment at night's end, Heineman pointed his phone at the audience for a mass shout-out: "We love you, Suleika!")

But when the author was in the throes of her rediagnosis, nothing was certain — and given the pandemic was still in full swing, every precaution had to be taken. "After the bone marrow transplant, she didn't have an immune system," Heineman said. "If she got a cold, she could have died."

As such, "It was very complicated from a producing point of view to navigate the puzzle of Jon's insane life, and then trying to find our way into the hospital, and then back out again, and back in again."

But they pulled it off, in the most concise way possible — which, given the unbelievable amount of footage they got, is something of a miracle.

1,500 Hours Were Filmed For American Symphony

As this writer came across Batiste in various situations, over the last couple of years — including in Las Vegas around the 2022 GRAMMYs, and the American Symphony premiere — a camera crew conspicuously trailed him everywhere he went.

Clearly, it was for something down the pike. And that something accrued an unbelievable 1,500 hours of footage — about 62 straight days. This could have resulted in a nine-hour bonanza, like The Beatles: Get Back. Or even an entire television series.

But to Heineman's credit, he resisted going maximal, and opted for a fundamentally quiet story. In fact, in the lynchpin scene of the film, no words are said at all.

About That Scene…

American Symphony arguably hinges on this scene: Batiste sits alone onstage, at the piano, before a smallish audience. He dedicates his next piece to Jaouad. And then he sits silently for 95 seconds; his microexpressions, breath and hands are poetry. Finally, the notes come.

"It's so easy in documentaries… forcing an essay, or an idea, through dialogue, through words, through voiceover, or through talking heads, or whatever," Heineman said. "[I wanted to] hold that space to allow you all to interpret that moment in your own way."

As Batiste clarified, the concert in question was a totally extemporaneous affair, where Batiste played whatever his antenna picked up.

"There'd be moments where I would even sometimes get up from the piano and leave until something came," he recalls. "And it felt like at that moment, there was a prayer that really needed to be specified and spoken out."

When The Power Went Out At Carnegie, Adrenaline Shot Through The Roof

Another of the most powerful scenes in American Symphony is during the titular performance itself — and, naturally, it's also of Batiste playing piano.

Although it was inconspicuous to the audience during the symphony's world premiere, panic had set in at one point: the power had gone out onstage, rendering the microphones and electronics dead.

Right then, he pauses and spins a melody out of the air, reflecting and refracting sad and sweet footage of their couplehood, which plays out onscreen.

"If you could see my blood pressure spike in the control room," Domino said. Of co-producer Joedan Okun: "We're sitting next to each other, and we're like, 'This is what we have anxiety dreams about, and now it's happening.' This guy is used to shooting in war zones. Jon is a genius, and they're just cool as cucumbers."

Suffice to say, when it turned out their 13 cameras didn't kill the power, the relief was unimaginable. And as Okun correctly observed in the moment, "This is a cinematic wonder."

The Ending Was Almost Much Different

True to Heineman's facility for smiting darlings in the editing stage, he was unafraid to completely change the ending at the eleventh hour — even though that version was, by all accounts, tremendous.

"Jon did his encore, which is what happened in real life… this beautiful rendition of the national anthem," Heineman said. "But it just felt like we weren't paying attention to the rest of the film that we had just made, and we didn't feel the two of them together."

"So, I guess I wanted to have my cake and eat it too," he continued. "To have the culmination of American Symphony, but also the symphony of life that we witnessed over the past year, come together with the two of them walking forward."

Right then, against a velveteen, winter sky, Batiste and Jaouad walk together into the future. Regarding both symphonies, personal and musical, together as one: Bravo.

Here's What Went Down At The World Premiere Of Jon Batiste's American Symphony At Carnegie Hall