Empowering and connecting ensemble musicians
Online resources for ensemble musicians
We believe that ensemble music can open the hearts of the faithful so God can better reach and shape them. Our organization seeks to open the hearts of those who open the hearts of others.
Our CLEF Life online resources include both educational and inspirational content in the areas of music, liturgy, scripture, ministry, and spirituality.

Simple Vocal Warmups for Singers
While many ensembles and choirs will spend some time warming up at the start of rehearsal or prior to singing at liturgy, there may be

Beginner Fills for Obbligato Instruments
Kathleen Basi teaches four basic options for beginner fills for obbligato instruments, whether flute, violin, cello, or another instrument. By combining these four technique, ensemble

Journey in Ministry: Dr. Mary Dumm
In this video, Dr. Mary Dumm shares some of her personal journey in ministry, from finding solace in prayer during difficult childhood years to embracing
July 26-31, 2026
CLEF Summer Program
The CLEF Summer Program is a week-long experience in Milford, Ohio, designed specifically for ensemble musicians. The week includes instrumental and vocal sessions, prayer, reflection, and community.

About our organization
Catholic Liturgical Ensemble Formation (CLEF) is an all-volunteer organization that provides training, education, and an active support network to empower ensemble musicians to facilitate full, conscious, and active participation in the liturgy.
Get involved
CLEF wouldn’t be possible without the generous support of our donors, volunteers, and online community. We invite you to join us in helping open the hearts of the faithful by supporting ensemble music in liturgy.

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