TONTO is an acronym for "The Original New Timbral Orchestra", the first, and still the largest, multitimbral polyphonic analog synthesizer in the world, designed and constructed over several years by Malcolm Cecil.

It was also used in the album 1980 by Gil Scott-Heron and Brian Jackson and was pictured on both the front and back covers of this album.TONTO was owned by Malcolm Cecil since he acquired Robert Margouleff's share in 1975.

[9] Tonto's Expanding Head Band's first album, Zero Time, was released in 1971 on the U.S. Embryo label (distributed by Atlantic Records) and attracted much attention.

[13] In the liner notes to the re-release, Mark Mothersbaugh wrote: The 2017 incremental game Universal Paperclips used the track Riversong, from the album Zero Time, as a space battle threnody.

[14] Malcolm Cecil and his son, Milton aka DJ Moonpup, performed at the Big Chill Festival on 5 August 2006, a three-day event held at Eastnor Castle in Herefordshire in the UK.

It was accompanied by a specially prepared visual show by Liz Searle with hundreds of pictures of TONTO and Poli Cecil's art pieces.