Jonathan Velasco is a most sought-after choral conductor, clinician, and adjudicator in the world today. He joined the University of the Philippines Madrigal Singers under Prof. Andrea Veneracion in 1981, and became its assistant choirmaster later. In 1989, he studied Choral Conducting at the Berliner Kirchenmusikschule under Martin Behrmann and finished with distinction.

He is the first Asian principal conductor of the World Youth Choir and was jury for the 2002, 2004, and 2006 Choir Olympics in Busan, Bremen and Xiamen. He has also judged the international choral competitions in Maasmechelen (Belgium), Budapest (Hungary), Tolosa (Spain), Wernigerode and Marktoberdorf (Germany), Kuala Lumpur (Malaysia) and Hongkong.

Jonathan Velasco regularly holds choral clinics and workshops in Manila as well as in the USA, Germany, France, Sweden, Spain, the Netherlands, Japan, Indonesia, Taiwan, Malaysia and Singapore. He is the President of the Philippine Choral Directors‘ Association (PCDA) and currently conducts the Ateneo Chamber Singers.