What did Ozzy Osbourne mean to music?

The "Prince of Darkness" was more than the guy who bit the head off a bat, says University of Rochester music historian John Covach.

Jul 22, 2025

1 min

John Covach

The world lost a heavy metal pioneer on Tuesday when Ozzy Osbourne, the frontman for the group Black Sabbath who went on to astounding commercial success as a solo artist, died at the age of 76.


University of Rochester music professor John Covach can help frame the contributions the self-proclaimed “Prince of Darkness” made to the genre of heavy metal and popular music.


“What’s That Sound?: An Introduction to Rock and Its History,” which Covach wrote with Carleton College professor Andrew Flory, is widely considered a landmark history of rock music. Covach can help distill heavy metal’s history and influences and Osbourne’s place in both.


He recently helped The New York Times explain what made the album “Pet Sounds” a masterpiece for Beach Boys chief songwriter Brian Wilson. He has offered commentary to the New York Daily News on why artists might relinquish ownership of their music.


Last year, he offered thoughts to The Boston Globe on the timeless appeal of aging rock ‘n’ rollers who are still packing arenas.


Connect with Covach by clicking on his profile.


Connect with:
John Covach

John Covach

Professor of Music and Director of the Institute for Popular Music; Professor of Theory at Eastman School of Music

John Covach is an expert on the history of popular and rock music, 12-tone music, and the philosophy and aesthetics of music.

Rock 'n' RollMusic and CultureProgressive Rock in the 1970sThe BeatlesPopular Music

You might also like...

Check out some other posts from University of Rochester

2 min

Adam Frank: New Peer-reviewed Studies Change the Conversation on UFOs

For decades, talk of UFOs has thrived on fuzzy photos and personal anecdotes—never the kind of hard data scientists can actually test. But new peer-reviewed studies have changed the conversation, says Adam Frank, a University of Rochester astrophysicist who studies life in the universe and the nature of scientific discovery. Two recent papers, published in reputable astronomy journals, claim to have found evidence of “non-terrestrial artifacts” in astronomical photographs from the 1950s — objects that appear to be  orbiting Earth before the Space Age began. “That’s an extraordinary claim,” Frank says, “and, as Carl Sagan famously said, 'Extraordinary claims require extraordinary proof.' “The good news is that, finally, there’s something associated with UFOs that science can work with.” Led by astronomer Beatriz Villarroel and her VASCO project (Vanishing and Appearing Sources during a Century of Observations), the studies passed the first test of scientific credibility: rigorous peer review. Now, Frank says, comes the harder part — the “call-and-response” that defines real science. “Getting a paper published doesn’t make the claim right,” he explains. “It just means the debate can begin. Other scientists will now dig into the data, test the methods, and try to tear the claim apart. That’s how science works.” Frank is a frequent on-air commentator for live interviews and segments in national media outlets and the author of The Little Book of Aliens (Harper Collins, 2023). He also regularly contributes to written publications, including The Washington Post, The Atlantic, The New York Times, and Scientific American. In 2021 he received the Carl Sagan Medal, which recognizes and honors outstanding communication by an active planetary scientist to the general public. It is awarded to scientists whose efforts have significantly contributed to a public understanding of, and enthusiasm for, planetary science. Connect with him by clicking on his profile. 

1 min

'Brain-on-a-chip': Engineering tomorrow’s breakthroughs today

A “brain-on-a-chip” technology might sound like science fiction, but it’s real-world hope. James McGrath, a biomedical engineer at the University of Rochester, leads a team that develops micro-scale tissue chips to study diseases in lieu of conducting animal experiments. The team’s “brain-on-a-chip” model replicates the blood-brain barrier — the critical membrane separating the brain from the bloodstream — to mimic how the barrier functions under healthy conditions and the duress of infections, toxins, and immune responses that can weaken it. Recent findings from McGrath’s team show how systemic inflammation, such as that caused by sepsis, can compromise the barrier and harm brain cells. The researchers also demonstrated how pericytes — supportive vascular cells — can help repair barrier damage, an insight that could guide new therapies for Alzheimer’s and Parkinson’s. The research culminated in a pair of recent studies published in Advanced Science and Materials Today Bio. “We hope that by building these tissue models in chip format, we can arrange many brain models in a high-density array to screen candidates for neuroprotective drugs and develop brain models with diverse genetic backgrounds,” McGrath says. McGrath aims to transform how scientists test drugs and predict neurological side effects before they occur — helping rewrite how we study, and one day safeguard, the brain. Contact McGrath by clicking on his profile

1 min

Government Shutdown: With Senate in the spotlight, expert Gerald Gamm offers insight

The Senate returned to Capitol Hill on the first day of a government shutdown to vote on two funding bills aimed at getting the government up and running amid an ongoing blame game among congressional leaders. University of Rochester political scientist Gerald Gamm is watching the deliberations and political maneuverings closely and is in a unique position to lend insight on the negotiations and gamesmanship. Gamm is a co-author of Steering the Senate (Cambridge University Press, June 2025). The book has received high praise from a multitude of sources, and has been called "essential reading for all who care — or worry — about the past and future of institutional leadership and capacity on Capitol Hill," "the best book we have about the organizational development of the Senate," and "a masterpiece . . . that unearths new information on the emergence of leadership institutions and the role of parties and showing their relevance for the Senate of today." Gamm is available for interviews and can be contacted by clicking on his profile.

View all posts