Companion (Doctor Who) "Face the Raven", but in a subsequent episode ("Hell Bent") her time stream is frozen at the moment of death by the Time Lords so that they can interrogate her about the Hybrid; the Doctor takes advantage of this to save her life, but she remains technically neither alive nor dead, does not age or have a pulse. After her departure as a companion of the Twelfth Doctor, she teams with the immortal Ashildr and travels in a stolen TARDIS. Other companions died in alternate timelines or alternate lives. "Brigade Leader" Alistair Lethbridge-Stewart, "Section Leader" Liz Shaw, and "Platoon Leader"
Concert Companion Concert Companion The Concert Companion was a hand-held device intended to enhance concert experiences by presenting information that complements the music while the music is being performed. Using wireless technology, the Concert Companion delivered explanatory text, program notes and video images in real time with the music. The Concert Companion was developed under the auspices of the Kansas City Symphony by former executive director Roland Valliere. Testing of the Concert Companion took place with the New York Philharmonic, Philadelphia Orchestra, Pittsburgh Symphony, Aspen Music Festival, Kansas City Symphony and Oakland East Bay Symphony. It was featured at the "Wall Street