Amid a heat wave, Philly Pops and Idina Menzel played music that arrived like a balm on Independence Mall

Whatever brutally hot designs the weather gods had in store Friday for Philadelphia’s Independence Day celebrations, by 8 p.m. the temperature fell below 90 degrees, and the music on Independence Mall arrived like a balm.

Listeners were stretched across the lawn of the mall fairly solidly from Independence Hall to Arch Street — an estimated 12,000 attendees, according to a Wawa Welcome America spokesperson. Whether drawn by the Philly Pops with tunes patriotic or stirring, or by popular actress-singer Idina Menzel, the crowd was in a mood at once celebratory and relaxed.

The weather posed no threat, at least for the first hour or so.

This annual tradition of “Pops on Independence,” a free Philly Pops concert on the mall, has become a way of taking the national temperature. Last year, a few months into the new presidential administration, there were subtle references to the political moment, with the acting superintendent of Independence National Historical Park speaking to the audience about equal rights of all kinds, including marriage rights, and referencing a nation “built on the struggle for freedom from tyranny, and the principle of liberty for all under the just rule of law.”

Friday night, park superintendent Steven Sims struck a more anodyne note, speaking of the historic setting, the city’s events this week commemorating the 250th anniversary of the nation, and of celebrating with “one of our most universal languages — music.”

The audience seemed only too happy to live inside of this bubble for a while, though to the woman holding up a “Striving for Democracy” sign, you were seen.

No one should take for granted the fact that this concert endures. The group performing Friday under the Philly Pops name is a band of survivors, emerging after the demise of the original Philly Pops and much organizational and legal drama. Had the orchestra not reorganized, a 4 ½-decade tradition of hearing music with no less a backdrop than Independence Hall might be gone.

How many other cities can boast as powerful and authentic a resonance between art and setting? When the Pops performed its Armed Forces Salute — having audience members stand as the respective song of the military branch in which they served was played — it made real and human the idea of such service to the nation.

A section has been added to the medley to recognize the U.S. Space Force, established during the first Trump administration; I could be mistaken, but no service member from that branch who might have been in Friday’s audience appears to have stood for this song, called “Semper Supra.”

Judging by the number of families with young children in attendance, the main attraction was Menzel, and if they came to hear “Let It Go” from Frozen, they were not disappointed. Menzel was a canny choice for this occasion; she is a singer who knows how to send sound and charisma back to the farthest reaches of the audience.

It was not necessarily the best night to appreciate the talents of the Pops and conductor Chris Dragon. The sound system near me, fairly far back from the stage, cut in and out. No sound check had been possible because of the heat, a Pops spokesperson said. And the concert ended earlier than planned after organizers grew concerned by gathering dark clouds and flashes of lightning. The last few pieces that might have showcased the ensemble weren’t played. A loss, for sure.

But the event succeeded on so many other levels, that it didn’t matter.

As the crowd headed off with the music fresh in their ears, downtown buildings were aglow red, white, and blue; young families lingered and took selfies; and Market Street on a Friday night seemed like the lively urban stretch it once was and could be again.