PHILADELPHIA - The Eagles seemingly heard music from everyone except the Eagles during Monday's practice at the NovCare Complex.

Every offensive, defensive and special-teams play during their first full-team workout under new coach Chip Kelly was accompanied by music that blared so loud on the outside fields that it could be heard by passersby on Pattison Avenue.

"I can't get into details, but there is a science behind the music," Kelly said afterward. "There is a rhyme and reason behind everything we're doing."

The team was treated to a wide variety of songs that spanned nearly 40 years during the two-hour minicamp session.

None of the 90 players on the field Monday were born when Queen first recorded "We Will Rock You" in 1977. Aside from quarterback Michael Vick, who turns 33 next month, very few are old enough to remember when AC/DC first sang "Thunderstruck" in 1990.

The playlist included some more recent songs, such as "On Fire" by Young Dro, "Stronger" by Kanye West, "Starships" by Nicki Minaj and Pitbull's "Get it Started."

"I don't think any players had any influence on picking the music, but I like it," wide receiver Jeremy Maclin said. "They seemed to have something for everyone, even (older spectators watching from the bleachers)."

Everything about Monday's workout, from the music, to the pace of practice, to the blueberry protein shake that Vick drank afterward, suggested that this is clearly not Andy Reid's team anymore.

Kelly's fingerprints were all over the workout.

The little club employee with the booming voice who used to bark out the next drill during practice during Reid's 14-year tenure was nowhere to be seen or heard. Instead, a prerecorded message announced each of the 20 sessions over loudspeakers.

Players raced on and off the field at full speed. There were no huddles between plays. Every offensive play was performed in the shotgun formation.

"I like practicing that way because that's what you do in a game," Vick said. "I like the music, too. It forces you to communicate better and concentrate and it keeps practice fun."

Kelly said he developed this pattern of practicing during his college coaching stops. The speedy workouts began when he became offensive coordinator at the University of New Hampshire in 1999 and and continued through his six seasons as offensive coordinator (2007-08) and then head coach (2000-12) at Oregon.

Along the way, he tweaked his offensive system to increase the number of plays per game, figuring the more time the offense spent on the field, the more scoring opportunities were created.

He has also developed different strategies for off the field. The Eagles' locker room is no longer set up by position. The cafeteria menu has changed to include more organic food. Players have individually labeled protein shakes waiting for them when they come off the field, as well as fruit.

"We've been using this stuff for a while, especially with the way we practice," Kelly said. "There's a lot that goes into that. Obviously, we know we can't practice full speed for the entire time we're out there, so it's got to be short bursts. But the game of football is short bursts. It's really an anaerobic sport when you look at it because you're going hard for five to six seconds and then you're taking a break.

"It also helps us with our evaluations of players. We've got 90 guys here, but I don't think anybody on our team is going to complain about the amount of reps they get. I think everybody gets a chance to show what they can do."

Depth charts changed by the minute, though Vick and quarterback Nick Foles took most of the reps with the first-team offense while rookie Matt Barkley, Dennis Dixon and G.J. Kinne worked with the backups.

Vick is considered the front-runner for the starting job, but Foles and even Barkley will have a chance to earn the spot during training camp and the preseason.

"I would hope that anyone that came into this place isn't sitting here and saying, 'I think I'm going to be a really good, solid backup,'" Kelly said. "I want our guys to come in here and show us everything they can do, and then it's our job as a coaching staff to put the best guys on the field the first (regular-season) game against Washington that will help us win.

"If anybody came in here and said they were really vying for a backup job, then they would probably be on the bus down (Interstate) 95 pretty quick."

Extra points: Cornerback Cary Williams was absent Monday after getting married Sunday. ... Two rookie draft picks - tight end Zach Ertz (Stanford) and Jordan Poyer (Oregon State) - cannot practice because their schools' spring semesters have not yet ended. ... Center Jason Kelce was a part-time participant in practice while recovering from last season's knee injury. ... The Eagles signed rookies Matt Murphy (wide receiver), Nic Purcell (tackle) and Daryell Walker (defensive end) on Monday. All three participated in last weekend's rookie camp on a tryout basis. The Eagles released tackle Matt Reynolds, wide receiver DeMarco Sampson and defensive tackle Ronnie Cameron.

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