From July 3–5, WXPN will celebrate Philadelphia’s extraordinary musical legacy with The Philly 250, a special programming series counting down the top 250 songs from, by, and about the City. In the lead-up, which began May 4, the station is rolling out more than 40 essential moments in local music history through daily on-air features. Listeners can expect highlights ranging from David Bowie recording “Young Americans” at Sigma Sound Studios to the inaugural Roots Picnic in 2008, and Pearl Jam closing out the Spectrum in 2009. Free and open to the public.