Jeczalik also worked as a record producer and musician on a number of the Pet Shop Boys early recordings. After leaving Art of Noise, he recorded in the 1990s under the moniker "The Art of Silence", releasing one album entitled artofsilence.co.uk. He has also won a Grammy and taught IT at Oxford High School until his retirement in 2013.
Before working with Trevor Horn and the ZTT Records label, Jeczalik had studied little about music. Through working with Geoff Downes (whom co-founded The Buggles with Horn) and his Fairlight CMI sampler, Jeczalik got in touch with Horn in the early 1980s and became the main programmer and player of Horn's own Fairlight. Jeczalik worked with several artists and bands including:
When the Fairlight CMI Series II came out in 1982, Jeczalik got access to "Page R", the built-in sequencer for the Fairlight. While working on the Yes album 90125, Jeczalik was experimenting with drum and percussion samples from Yes' drummer, Alan White. Jeczalik along with sound engineer, Gary Langan, sequenced drum beats and breaks in Page R and created "Beat Box", the debut single for Art of Noise.