bowie reminiscedra,dq with his connection to our town. >> i have major performances that debuted in philadelphia i felt like an outcast as a young kid. he was sort of somebody to look to who was like you if you were not like everybody else. >> someone like david bowie actually became a role model for success in an unconventional form. >> his loss is really hitting a lot of people very hard. >> they're getting this double whammie, we didn't even know he was sick. not only is he sick he released a brand new album. his birthday was a couple days ago and now he's gone. >> and joining me now is local music historian and publ sit randy alexander and michael tasia. he is a rorlgd engineering who worked with david bowie and also the sewn of joe tarsia. we thank you so much for being here. randy, i want to set the stable for this conversation a little bit and start with you. we heard in denise's package the mention of this philly sound and david bowie being attacked to that. when you hear the firm a philly sound, what did that mean at that time? what was the attraction? >> well, the philly sound really w