詹姆斯·堤雀諾爾的創作歷程中曾將旋律和歌詞發送給各個美國軍樂隊,使他們能夠為編曲和收尾工作提出建議,[1][4]事後軍樂隊共提交了12種不同的編曲供詹姆斯·堤雀諾爾參考。[1]詹姆斯·堤雀諾爾後與美國海岸警衛隊樂隊長號手及首席樂師(英语:Musician (United States Navy))尚恩·尼爾森合作,[1][4]尚恩·尼爾森用和聲和管弦樂完成這首歌,同時添加30多個樂器演奏。[1]尚恩·尼爾森為此稱:「雖然我開始熟悉其他種類的樂曲,但我仍希望這首歌曲能保有自己的現代風格,以反映太空部隊的特點:『現代、新穎和非常先進』。」。[註 2][1][4]該進行曲在尚恩·尼爾森編曲完成由美國海岸警衛隊樂隊進行錄製以供美國太空軍審查,[1]在美國太空軍和海岸警衛隊樂隊經過數月協調並進一步地開發和修改歌曲及變奏後,美國太空軍選擇《永恆至上》最終版本為官方進行曲。[1]
^原文:「The song was a long work in progress because I wanted it to encompass all the capabilities that the Space Force offers and its vision.」
^原文:「I became familiar with the other branches' songs, but I wanted this one to have its own modern spin to reflect what the Space Force is — modern, new, and very advanced.」
^原文:「We wanted a song that spoke to our guardians, that brought to life our motto, 'Semper Supra.' And it all comes together into something that I hope guardians around the world will be proud of.」
^原文:「This is a once-in-a-lifetime opportunity to establish a Space Force song that will be part of our culture and heritage for years to come. Our traditions are part of the fabric that weave us all together as we execute our missions side-by-side; I will be proud to sing 'Semper Supra' alongside my fellow guardians.」
^原文:「It was created to capture the esprit de corps of both current and future Guardians, and intends to bring together service members by giving them a sense of pride.」
^原文:「My immediate thought went to Team America: World Police. (...) Or like something out of, like, a G.I. Joe cartoon.」
^原文:「That while trying to "shoot for the stars," the musical number leaves something to be desired.」
^Ari Shapiro, Stephen Thompson. A review of Space Force's new anthem, 'Semper Supra' (radio magazine). NPR. September 22, 2022 [September 23, 2022]. (原始内容存档于2022-10-12). THOMPSON: I mean, it depends on what you're going for, right? Like, I looked at, like, OK, there's a new song for the Space Force. My immediate thought went to Team America: World Police. You know that movie? SHAPIRO: Like, '90s hair rock or something. THOMPSON: Yeah. Yeah, exactly. Or like something out of, like a G.I. Joe cartoon or something. And, like, they're not going to do that. It's a military march. So I don't know what I was expecting in terms of, like, this song is stodgy and old-fashioned. It's a military march. But also, at the same time, you're called the Space Force. A lot of your iconography does evoke so much pop culture. They might as well have leaned into it.