- Building Community Through Improvisation: Northampton Jazz Workshop and Jam Session
- Creating Language Together: Who'da Funk It? in Amherst
- Join the Seisiún: Celtic music in Amherst and Northampton
- Quiets the Mind and Opens the Heart: Vajra Dance at Tsegyalgar in Conway
- The Pioneer Valley Polka: Polka Radio on WMUA-Amherst
- "Take Hands Four": Contra Dancing in the Pioneer Valley
- Peter and Then Some: The Happy Valley Guitar Orchestra
- All Ages: A Flywheel Documentary
- A Taste of Music in the Pioneer Valley's Puerto Rican Community
- And We'll All Sing Hallelujah: Tuesday Night Sacred Harp Singing in Northampton
- Drifting Away: Reggae in the Pioneer Valley
- Expanding Silence: The Rise and Fall of the Estey Organ Company
- Our Lady of Sorrows Sings On: The Sounds of Catholic Worship in Holyoke
Born in Puerto Rico to a Puerto Rican father and a Bostonian, Jewish mother working at the University of Puerto Rico, William has since lived all over the Valley and now lives in Northampton. He is a master luthier, specializing in guitars and many Caribbean instruments, including the cuatro. After mastering European stringed instruments, he realized he knew nothing about the instruments of his Puerto Rican roots and set out to learn about the cuatro, tres, and others. One of William’s current passions is the history of the cuatro and Puerto Rican music. He is the co-founder of the Cuatro Project, a 15-year old documentary project dedicated to researching and archiving Puerto Rican musical traditions. He interacts with many of the musicians in the Valley and the broader region, making and repairing instruments for them.
His instrument making and repair workshop—shared with Harry Becker—is right on the town line between Northampton and Easthampton, Massachusetts. Visit William's website or the Wikipedia page on him to learn more.