About Us

One of the UK’s most renowned writing teams, Tony and Gaynor Sadler [formerly known as Logorhythm Music] have become synonymous in the Broadcast and Advertising world with cutting edge, innovative and beautiful music.

Both graduates of the Royal College of Music London, they discovered their talent for composition to picture on a Ryvita commercial; since then they have written and produced over 4000 pieces of music on a World- wide basis all of which are published by their own Imprint, Montgomery Music Ltd.

Key Advertising Campaigns include the launch of the National Lottery, BMW, Nissan, BT, Levis, Heineken, Lowenbrau, P&O Ferries, Esso, Sony, Scottish Widows (a 12 year collaboration), Dove, Black & Decker.



The list of Directors worked with in this Field is impressive:

Ridley Scott, Mike Newell, Jon Amiel, Martin Campbell, Peter Chelsom, John Dykstra, Daniel Barber, Chris Palmer, Mark Denton, Ken Russell and many others.



Film and TV Drama projects include “Gothic”, “Come Home Charlie and Face Them”, “Goodnight Sweetheart” (all seasons), “Searching”.

TV Theme Tunes include “Inside Out”, “HomeFront”, “Did you see?”, “Bookworm”, “Bookmark”, “Behind The Headlines”, “Saturday Night Clive”, “Watching The Detectives”, “Right To Reply”, “True Stories”, “Art Zone”.



One of their great strengths is in Audio Branding: creating a signature that precisely defines the personality of a company or product.

For Television Stations successes include BBC1, BBC2, Thames TV, UK Gold, Open University, Discovery Channel, VH1, Netherlands 1,SF & SF1, Music Choice, TV5, British Airways TV Network, CITV (twice), CBBC1, CBBC2, But First This.

Station branding for BBC Radio includes all Local Radio, World Service, Radio Scotland and Scottish Regional, Radio Ulster, Radio Foyle.

Complete News Packages include Thames News, Radio Scotland, World Service, Radio Ulster.



Product Branding includes BT (3 campaigns), Peugeot, Opel, TWA, Cheerios, Maxwell House, BarclayCard, Visa, Diners Card.

Collaborations with Branding & Design Gurus include Lambie-Nairn, Wolf Olins, English Pockett, Dunning Eley Jones, Kemistry.



Tony and Gaynor have worked on many hit records as Writers/ Arrangers/Producers and guest Musicians: with such British acts as Our Kid, Kelly Marie, Talk Talk, Spandau Ballet, ABC, Yes, Orange Juice, Brian Kennedy, Savoy and Sleeping Lions; Rock legend Suzi Quatro; French Stars Alain Barriere and Francis Cabrel; Spanish Superstar Juan Pardo, Japanese Chart Institution Seiko and the ‘Golden Voice of Prague’ Karel Gott.

Currently working with Peter Howarth, lead singer of The Hollies, writing and producing his solo album ‘Evermore – Songs of Love and Inspiration’.