Danish guitar wizard John Guldberg came early on the local recording session scene, for his amazing sense of timing and taste in what kind of guitar part would enhance a song, rather than having crazy egomaniac guitar stunts detract from it. He also was an early pioneer of synthesizer guitar sounds - using a guitar as if a keyboard synthesizer. Many times over, he got comments and questions as to "where's the guitar on this track? I can't hear any!" having to answer "well... half of the synth sounds you hear are done with a synthesizer guitar".

Along with his partner Tim Stahl (vocals, keyboards) in Laid Back, Guldberg shared vocal duties with his baritone-like voice and also went on to write lyrics for the group as well as handling the mixing of their tracks more than often.