Sinfield worked as an artistic director, roadie, and technical handyman for the prog greats, then enjoyed a long career as a lyricist for other artists

Peter Sinfield, the colorfully surreal British poet and lyricist who co-founded King Crimson with guitarist-composer Robert Fripp and went on to contribute lyrics to songs by Emerson, Lake & Palmer, Celine Dion and Cher,

Doug Ingle, lead vocalist, organist and primary composer of the band Iron Butterfly, died in late May at the age of 78. Iron Butterfly was founded in 1966, they released their debut album in 1968 and within six months were prog rock stars.