Hans Reffert and Hans Brandeis from Ludwigshafen, Germany, wanted to form an experimental band with other musicians in late 1969. However, as this came to nothing, the pair continued as the duo Flute & Voice from April 1970 onwards. Together, they decided to embark on a project to create gentler, less intense interpretations of world music. With their concept of helping the listener to „achieve a state of inner peace and balance“ rather than a state of excitement, they gave numerous concerts throughout Germany. They received an offer to record an album from the legendary Pilz label, a subsidiary of the BASF Group, which was also based in Ludwigshafen.

The recordings took place in 1971 at the Tonstudio Bauer Ludwigsburg – which specialised mainly in jazz – with producer Klaus R. Nagel and sound engineer Martin Wieland. „Flute“ Hans Reffert played electric guitar, acoustic guitar, bass flute and flute, while „Voice“ Hans Brandeis played sitar, electric guitar and provided vocals. Imaginations Of Light was released in Germany that same year, featuring a magnificent psychedelic cover design by Willi Hölzel in collaboration with Hans Reffert. The four tracks constitute a thoroughly progressive underground work, characterised by numerous flute sounds, sitar, electric and acoustic guitar, and vocals. Curiously, it was released in Japan a year later. Although this rare LP attracted little attention at the time, they recorded a second album in 1973, which, however, remained unreleased. Following a geographical separation of the two musicians, Flute & Voice disbanded finally in 1975.