William McGregor, from Ann Arbor, Mich., first entered the Curtis Institute of Music in 2018 and received a Bachelor of Music in 2022. He is now pursuing a Master of Music, studying double bass with Harold Hall Robinson and Edgar Meyer. All students at Curtis receive merit-based, full-tuition scholarships, and Mr. McGregor is the Shaun F. O'Malley Fellow.

Mr. McGregor has won several competitions including the 2017 Stulberg International String Competition, the 2012 and 2016 Juilliard Pre-College Open Competitions, the 2013 Salome Chamber Orchestra Young Artist Competition, and the 2012 Ensemble 212 Young Artist Competition. He has performed as a soloist at Lincoln Center, Merkin Hall, the Kennedy Center, and Carnegie Hall. In 2018–19, he appears with the Baltimore Chamber Symphony and the Grand Rapids Symphony.

In 2018, Mr. McGregor was named a National YoungArts Finalist and a U.S. Presidential Scholar in the Arts. He studied in the Juilliard School Pre-College Division for nine years and was a fellowship student at the Aspen Music Festival and School. He has performed in master classes with Timothy Cobb, John Kendall, Eugene Levinson, Ranaan Meyer, David Murray, and Anthony Stoops.