subsequently played synthesizer and harpsichord for Singh's live shows, and later played and contributed remixes on Singh's debut album, OK. "Survival Game" In 1993, Sigsworth produced the benefit song "Survival Game" for the relief organization Menschen für Menschen in Ethiopia, founded by actor Karlheinz Böhm. The song was written by Mike Turtle and Dean Frederick. The track was later remixed by Paul Dakeyne and hit the charts in South America and Europe. Björk While working with Talvin Singh, Sigsworth met Björk, becoming keyboard player, and later music director, of her live band for two albums. Sigsworth brought his early music sensibility to Björk's live performances and recordings, adding harpsichord, clavichord, regal, and positive organ accompaniments to her music. His harpsichord can be heard on the song "Cover Me" from the album Post; the clavichord on the song "All Is Full of Love"; and organ on the "Unravel" from Homogenic. "Unravel" was Sigsworth's first co-written song with Björk. Sigsworth also played celesta on Björk's cover of Joni Mitchell's "The Boho Dance"; the celesta later became a feature on both Selmasongs (where he also contributed a string arrangement) and Vespertine, on which he co-wrote "Hidden Place", "An Echo, A Stain", "Sun in My Mouth", and "Harm of Will". Imogen Heap Sigsworth first met Imogen Heap in 1996 after a friend played him a demo of her song "Come Here Boy". He immediately fell in love with her distinctive voice. He was also amazed to hear that she shared his idiosyncratic love of melodies featuring wide, angular intervals—especially major 7ths and minor 9ths—which are not so common in pop. They wrote two songs together, "Getting Scared" and "Airplane", which Sigsworth produced for her debut album, I Megaphone. In return, Heap sang backing vocals on Sigsworth's band project with Alexander Nilere, Acacia. G:MT In 1999, Sigsworth scored the movie G:MT - Greenwich Mean Time, which included musical contributions from Imogen Heap, Talvin Singh, and free jazz virtuoso Lester Bowie. Madonna Sigsworth co-produced the 1998 Mandalay album Empathy, which attracted the attention of Madonna. This in turn led to him co-writing the song "What It Feels Like for a Girl" with Madonna and David Torn, for her 2000 album Music. Sigsworth also wrote the song "Nothing Fails" with Jem for Madonna's 2003 album American Life. Frou Frou One night in Mumbai, India, where he was producing a song for British artist Amar, Sigsworth composed a