Leonardo Arguello Hernandez
@leonardoarguellohern
Experienced jazz double bassist, educator, and performer with international teaching and performance acclaim.
Costa RicaWhat I'm looking for
I am a jazz double bassist, composer, and experienced educator with a Master of Music in Jazz Performance and Pedagogy from the University of Colorado Boulder. I have taught double bass, jazz improvisation, and jazz theory at university level since 2017 and led masterclasses and ensembles across Latin America and the U.S.
My career combines extensive performance—festivals in Cuba, Guatemala, Brazil, Mexico, and the U.S.—with studio recordings as a performer, composer, and producer. I prioritize musical leadership, cross-cultural collaboration, and pedagogical excellence in both conservatory and university settings.
Experience
Work history, roles, and key accomplishments
Professor of Double Bass
National University of Costa Rica
Feb 2022 - Present (3 years 11 months)
Professor of Double Bass, Jazz Improvisation, and Jazz Theory delivering undergraduate instruction and ensemble coaching since 2022, developing curricula and mentoring students to improve technical and improvisational skills.
Masterclass Instructor
National Autonomous University of Honduras
Sep 2025 - Sep 2025 (0 months)
Delivered a jazz masterclass in San Pedro Sula focused on advanced jazz techniques and pedagogy in September 2025.
Professor of Double Bass
University of Costa Rica
Jan 2023 - Jul 2023 (6 months)
Taught Double Bass and led the Jazz Ensemble at the Caribbean Campus, directing rehearsals and performances during a contract from January to July 2023.
UBGraduate Teaching Assistant
University of Colorado Boulder
Aug 2017 - May 2019 (1 year 9 months)
Served as Graduate Teaching Assistant supporting jazz performance instruction, ensemble direction, and student mentorship while completing a Master of Music from 2017 to 2019.
Professor of Double Bass
Municipal School of Music of Alvarado
Feb 2011 - Nov 2016 (5 years 9 months)
Taught double bass and solfège and conducted the String Camerata, providing instruction and ensemble leadership from 2011 to 2016.
Professor of Double Bass
Integrated Arts School, Municipality of Escazú
Feb 2015 - Jul 2015 (5 months)
Taught double bass and electric bass courses for the municipality's integrated arts program, delivering technique instruction and ensemble performance training from February to July 2015.
Education
Degrees, certifications, and relevant coursework
UBUniversity of Colorado Boulder
Master of Music, Jazz Performance and Pedagogy
2017 - 2019
Activities and societies: Graduate Teaching Assistant; CU Concert Jazz Ensemble performances and recordings.
Completed a Master of Music in Jazz Performance and Pedagogy with emphasis on double bass, including graduate teaching assistant responsibilities.
National Institute of Music (Instituto Nacional de la Música), Costa Rica
Technical Diploma, Instrumental Studies (Double Bass)
2012 - 2014
Activities and societies: Performed with institute ensembles and Big Band; studio and live performance experience.
Completed a Technical Diploma in Instrumental Studies focused on double bass performance and ensemble work.
NRNational University of Costa Rica
Bachelor's Degree in Music, Music (Music Education)
2008 - 2014
Activities and societies: Teaching positions at multiple Costa Rican music schools; ensemble conducting experience.
Earned a Bachelor's Degree in Music with emphasis in Music Education, preparing for roles in music instruction and ensemble direction.
Tech stack
Software and tools used professionally
Availability
Location
Costa RicaAuthorized to work in
Job categories
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