His parents were Irish immigrants who ran a cattle station, and his first language was Gaelic, as is his first name (pronounced "cashel"), meaning "circular stone fort".

[citation needed] After returning from travels in India, Europe, and North Africa in 1986, Mór was encouraged by friends to audition for the performing arts degree programme at the University of Western Sydney (Theatre Nepean) in 1987.

[citation needed] In his early twenties Mór travelled through India, Europe, and North Africa, where he met musicians and yogis from the Hindu and Sufi traditions, and developed a love for non-Western music and instruments.

[citation needed] From around 2013 he collaborated with the singer and multi-instrumentalist Laya Rocha, with their early work "heavily influenced by Arabic, Turkish and Persian microtonal music".

After travelling to Mongolia and bringing in more guest musicians, they changed the band name to Moonlight Tribe, and created various versions of a work called Ninety-Nine Skies.