In 1987 he joined the Australian Broadcasting Corporation (ABC) at the Horsham studios of 3WV/WL, presenting the local current affairs morning program before moving to the breakfast shift and regional manager.
lang and the Siss Boom Bang performed a set live to air with an audience made up of 400 ABC listeners who had won tickets to attend.
It is based on his visit to Villers-Bretonneux while covering the Melbourne Symphony Orchestra's tour of Europe in 2007 for ABC Radio.
Guille plays guitar, ukulele and kazoo with varying degrees of proficiency and sings with a sort of jug band called the Ugly Uncles.
He also enjoys reading (from the widest range of genres but especially comic fiction) and theatre and has an appreciation for fine wine and food.