Film scoring
Although Bishara's film score work began with the Biblical drama Joseph's Gift in 1998, most of his subsequent work has comprised horror films starting with Unearthed and The Gravedancers in 2006 and Night of the Demons in 2009. His collaborations with filmmaker James Wan led to his prominence as a film score composer and popularity in the industry.
He began to be the subject of more media attention with the Wan-directed film Insidious in 2011. The New York Times film critic Mike Hale remarked that Bishara's score helped the film recover from some of its negative attributes such as "pedestrian camerawork". Writing for Howlin' Wolf Records, Jason Comerford referred to the film soundtrack as a "dense, bristling effort jam-packed with invention and energy". Journalist Jonathan Barkan of Dread Central and Bloody Disgusting named the musical accompaniment as "one of the great masterpieces of horror music from this century". The score was performed by a string quartet accompanied by Bishara producing sounds on a rusted piano using hammers, files, and other "experimental instruments" of his design. Much of the music was recorded before Wan began shooting the film, the musicians improvising some parts as they went along but following Bishara's broad structure and concept. Bishara began sending completed recordings to Wan as he was editing the film so Wan could work the score into the film according to the structure he desired. Though film composers are typically more involved in music placement, Bishara noted the process used on Insidious felt "free". He also acted in the film, portraying a demon that served as the film's main antagonist.
Bishara went on to score the Darren Lynn Bousman film 11-11-11. In 2013, he worked with Scott Stewart to write the music for the science fiction horror film Dark Skies. Writing for Film Journal International, critic Justin Lowe referred to the score as "unnerving" but suitable within the background of the action. Bishara then reunited with Wan to compose the music for The Conjuring. He also portrays an entity named Bathsheba in the film. Wan's producers gave him wide latitude to decide who he wanted to work with him on the film, so he brought back many of the crew from Insidious, including Bishara. Bishara composed the music for the sequel to Insidious, Insidious: Chapter 2 (2013), but did not return to portray the demon.
In 2014, Bishara scored the John R. Leonetti horror film Annabelle, for which he received an ASCAP Top Box Office Films award. He next composed the music for a segment of the 2014 anthology film V/H/S: Viral, "Gorgeous Vortex", as well as the Wan production Insidious: Chapter 3, and another horror film, The Vatican Tapes, on which he replaced Mike Patton of Faith No More. Bishara scored the music for the 2016 horror thriller The Other Side of the Door and returned to work with Wan, composing for The Conjuring 2 and appearing in the film as an entity named the "Winged Creature" (credited as "Demon"). He also scored the 2018 installment in the Insidious film series, Insidious: The Last Key.
Bishara announced in August 2018 that his label, Void Recordings, would release a 27-track compilation of developmental and unreleased music from the Insidious film series, More Music from the Further. Writing for the horror web site Bloody Disgusting, producer Brad Miska said that the compilation carried an avant-garde style over its entirety. He compared it to works by Tangerine Dream and John Carpenter, and said it also bore elements of classical, early goth, and industrial music.
