It was, in the end, an artful compromise.

Joe Biden got to speak uninterrupted and renew his pitch to Black voters. Protesters got to make their point by wearing keffiyehs or raising a fist. Even the skies were merciful, hinting at but never quite unleashing rain.

And through it all, Sunday’s 140th commencement at Morehouse College, a historically black men’s college in Atlanta, preserved not only its dignity but a sense of joy. Music played, parents wept and graduates who had weathered a global pandemic could savour their big day without being upstaged.

“Thank you God for this ‘woke’ class of 2024 that is in tune with the zeitgeist, the spirit of the times,” the Rev Claybon Lea Jr said during a prayer at the start of the commencement, held on a lawn on the college’s century campus, surrounded by trees and red brick academic buildings.

The urgency of the daily news agenda – will the US president be heckled over Gaza? – collided here with storied traditions dating back a century and half. Accompanied by organ music, the 2024 graduating class processed in black mortar boards with gold or black sashes. Most wore Kente stoles with the Morehouse seal.

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Morehouse alumni followed, many wearing maroon jackets and straw hats with maroon bands. Some went all the way back to 1954. The alumni seemed more enthusiastic about standing to applaud Biden than the fresh wave of graduates.

They took their seats and looked at a stage that had been erected with a black awning with a maroon backdrop that said “Morehouse”’ in giant letters. Two big screens were showing the event, including close-ups of graduates who smiled, waved or made goofy faces.

The programme began with the solemn ringing of a bell, an evocation and the Army Color Guard Corps performing the presentation of colours. The Morehouse College Glee Club performed the The Star Spangled Banner and Lift Every Voice and Sing – the swelling chorus resonant, resilient and transcending concerns of the moment.

The emotion of the day was evident in David Thomas, president of Morehouse College, who choked up a few times. He paid tribute to students who got through the pandemic with perseverance: “You have demonstrated unparalleled fortitude in the face of adversity.”

When Biden took the stage, wearing a maroon gown with three black stripes on the arms and maroon tie, there was polite applause, though it could hardly be described as fierce.

There had been much hype around his Morehouse commencement address and whether, in light of unrest on other campuses around the country, it would be disrupted by protests over his handling of the war in Gaza. Some staff and students had called for Biden’s invitation to be rescinded over his support for Israel and their discomfort with an address during election campaign season.

But not for the first time, Biden benefited from low expectations and will count the relatively modest dissent as a win. Outside the college, a lone protester brandished a handwritten “Genocide Joe” sign, watched closely by a police officer.

Inside, a small number of graduates wore keffiyehs – the black-and-white head scarf which has become an emblem of solidarity with the Palestinian cause – around their shoulders on top of their black graduation robes. In his evocation, Lea cited a “Palestinian Jew named Jesus”, and said all children matter, from Israelis to Palestinians and beyond.

DeAngelo Jeremiah Fletcher, the class valedictorian, wore a small Palestinian flag pin and decorated his mortarboard with another Palestinian emblem. First he spoke movingly of the dehumanisation that African Americans have long endured and said Morehouse has instilled pride “in our combined identities as Black and human”.

He turned to global politics and referenced Morehouse graduate Martin Luther King, whose civil rights activism overlapped with opposition to the Vietnam war.

Fletcher said: “From the comfort of our homes, we watch an unprecedented number of civilians mourn the loss of men, women and children, while calling for the release of all hostages.”

Biden was staring ahead. Fletcher added: “It is my stance as a Morehouse man, nay as a human being, to call for an immediate and permanent ceasefire in the Gaza Strip.”

Biden joined the applause and shook Fletcher’s hand. When it was Biden’s turn to speak, some students turned their chairs around to turn their backs to him and one graduate appeared to briefly hold aloft a Palestinian flag.

A lone graduate at the back, wearing a mortar and blue gown, remained still with his back turned to Biden and his right fist raised throughout the entire address. It was perhaps a more powerful statement than any number of disruptions or sign waving.

Biden, who has lavished attention on historically Black colleges and universities, sought to assure his audience: “I support peaceful nonviolent protests. Your voices should be heard, and I promise you I hear them.”

He described the war in Gaza as “heartbreaking” and acknowledged: “Innocent Palestinians are caught in the middle of this … It’s a humanitarian crisis in Gaza. That’s why I’ve called for an immediate ceasefire. I know it angers and frustrates many of you, including my family.”

Opinion polls suggest that some African American men in Georgia, a crucial swing state, are tilting away from Biden towards his election opponent Donald Trump. But it was hard to imagine the former president coming to speak here, getting the same kind of reception or speaking out against “extremist forces”, as Biden went on to do.

An honorary doctorate was bestowed on Biden, who wore a mischievous expression, then smiled and laughed and pointed at someone in the audience. He joked: “I’m not going home!”

And for the first time that morning, the audience began chanting. Not “Genocide Joe” but “Four more years!”