Boy, do I feel old. One day I wake up, and I realize I’ve been alive long enough for an entire generation of new composers to come of age.

On today’s Noontime Concert, it’s another program featuring musicians from Network for New Music. We’ll hear recent works, including a few premieres, by contemporary composers Rene Orth, Joshua Hey, Sky Macklay, Andrew Hsu, Gabriel Bolaños and Charles Peck, all presented under the unifying theme of “Millennial Music.”

NNM’s mission is to perform new musical works of the highest quality by a diverse array of established and emerging composers; to strengthen the new music community in the Philadelphia region; and to build support for new music by engaging in artistic and institutional collaborations and educational activities.

Founded in 1984, Network for New Music has presented more than 650 works by living composers (of which over 150 they have commissioned) and recorded four CDs for the Albany and Innova labels. The ensemble has held an ongoing residency at Haverford College since 2007.

NNM will present its season opener, “Streams of Sound,” at Philadelphia’s Settlement Music School Mary Louise Curtis Branch, 416 Queen Street, this Sunday at 3 p.m. For more information and a complete schedule, look online at networkfornewmusic.org.

As if a program of millennial music isn’t enough to make me feel acutely the passage of time, our featured work following today’s broadcast concert will be Franz Joseph Haydn’s oratorio “The Seasons.” Haydn’s late masterpiece underpins the cyclical nature of the year with colorful vignettes suggesting the circle of life (and death). I think I’ll just focus on the wit and the wine.

I hope you’ll join me as I stare into the face of my own mortality, from 12 to 4 p.m. EST, on WWFM – The Classical Network and wwfm.org.

“Sharpening the Scythe” (1897), by Ralph Hedley