Jinnawat Mansap began his music studies with Mr. Prayut Chan-ak-sorn at Horwang school band in the position of Euphonium and Tuba player. He graduated from the Faculty of Music Education, Chulalongkorn University. His major instrument is Tuba that studied with Suraphon Thunyaviboon and Manit Bhuchacha-nok (principle Tuba of Bangkok Symphony Orchestra).
Along the time to study at Chulalongkorn University, he always had much performance as chamber music, solo Tuba, the member of Thai Youth Orchestra, and the member of Chulalongkorn University Orchestra since 1997 to 2002.In 2003-2005, Jinnawat went to Nagoya, Japan to play with Tenrikyo Aimachi Marching Band for All Japan Marching Band Competition.
In the present, Jinnawat is holding a Master’s degree in Music Composition from the Faculty of Fine Arts, Chulalongkorn University. He is Brass instructor of Siamyth Drum and Bugle Corp, is the full-time lecture of department of music Kasetsart University, and do many arrangements and compositions works for concert band and marching band in Thailand, Malaysia, Singapore, Hong Kong, China and Japan.