1. . . . Jimmy Ellis , lead singer of the Trammps , a premier R&B/disco vocal/instrumental group produced by the Baker-Harris-Young team in Philadelphia , died Thursday of Alzheimer’s disease.
  2. The group, best known for “ Disco Inferno ” (“I heard somebody say . . . Burn baby down, burn the mutha down”), which was featured in the movie soundtrack, had a long list of seminal recordings, first known to dance music insiders and released on the Buddah Golden Fleece and then Atlantic record labels.