Carrey Oliver is a songwriter, choral music practitioner, music consultant, vocalist, educator, performing arts coach and professional voice teacher in Sabah (North Borneo), Malaysia. He begins his career as a singing trainee with Karajan Music School in 2004. After two years of active career as a toured vocalist and performer with a local entertainment company in 2005, Carrey resumes his teaching practice in 2007 at the Pusakag Music School until 2013.

In March 2014, he co-founded the then Oongisvoce Music Mansion and reunited with his past students during his years as freelance vocalist and singing coach. Today his clients include private and government groups, public schools, colleges, universities, as well as private students of local Sabahan and Kuala Lumpur-based recording artistes. Carrey is the Gold Medalist and Winner of Category for the Solo Singing Adult Category during the “4th World Virtual Choir Festival 2021” adjudicated by James F. Sundah, Dr Maria Emma Meligopoulou, Monica Hwang Hwa Sook, Ir. Purwa Tjaraka, and Dr Tracy Wong. 

Carrey received professional instruction in Western Classical singing and Choral Conducting under the tutelage of an eminent Baritone teacher, Mr Yap Hon Leong. He also received a Bel Canto instruction from an accomplished international soprano Ms Phoon Sook Peng whom he continues to admire and collaborate until today. Carrey also received training from a renowned opera singer, scholar, and educator, Mr Stefan Holmstrom. In addition to that Carrey had also attended singing and choral conducting workshops by Tommy Kandisaputra, Ndaru Darsono, Josephine Polim, Rainer Revireino (Batavia Madrigal Singers), Dr Brady R. Allred, and Katherine Ciesinski. Under the auspices of the Cultural Center of the Philippines, Carrey continue his passion in choral music with choral conducting training from the renowned choirmaster of the Philippines Madrigal Singers (MADZ), Mr Mark Anthony Carpio, along side with Philippines lyricist, Joey Gianan Vargas, and the singers in MADZ. 

Carrey develops interest in vocal pedagogy research and synthesize his classical voice training with the Contemporary Commercial Music methodologies expounded by established modern voice experts, pedagogues, and specialists to develop his teaching style as part of the trademark training in the Oongisvoce Academy of Music learning system. 

Carrey received his Licentiate Diploma in Musicology and Research with his thesis entitled “Choral Pedagogy: Teaching Non-Musical Adult Choir in Multi-Cultural and Multi-Religious Malaysia” and further awarded with SCSM International’s highest qualification in the Fellowship Diploma with the research thesis titled “Teaching Choral Singing to the Public Service Employees and its Impact to the Well-Being in the Workplace“. He also holds a Fellowship qualification from the reputable “Australian Society of Musicology & Composition” and became the Fellow of the “Guild Of Musicians and Singers” (London).