Music Services

  • Performances, Tours and Recording Sessions
    • Cello
    • Guitar
    • Vocals
    • Chamber Music, Bands & Ensembles
    • Orchestral (Section, Pit & Solo)
  • Songwriting & Composing
  • Arranging
  • Teaching/Tutoring (guitar, cello & theory)
  • Workshops
  • Collaborations
  • Live streams


For all enquiries, please email : williamjackmusic(at)gmail.com


(for programs – updated Dec 2020)

William Jack is an Australian Cellist, Guitarist and Songwriter who explores multiple genres and styles. He began performing from a young age as a virtuosic guitar soloist with Adelaide orchestras and rock bands. He later studied jazz guitar with Mike Bevan and obtained numerous ensemble opportunities including a scholarship to the Julliard Winter Jazz School.

William studied cello at the Sydney Conservatorium of Music with Georg Pedersen. He pursued further study in Vienna with Maria Sellner at the Universität für Musik und darstellende Kunst Wien. William’s classical music engagements have been extensive and included prestigious venues from the Musikverein Golden Hall to Sydney Opera House. He has received various awards and guidance from notable artists such as David Geringas, Thomas Demenga, Natalie Clein and Wen-Sinn Yang. William’s niche is his ability to incorporate his guitar background into an unconventional style of cello playing. He performed twice as a Jazz cello soloist and guest with orchestra at the International Cello Festival in Rutesheim. William’s progressive works have received praise from distinguished composers including Giovanni Sollima. In 2020, William was selected to perform his own solo piece for cello and voice at the Australian Bushfire Benefit in London.

Since the release of his collaborative single with percussionist Sami Butler, William has continued to create a wide array of new music. William moved to the UK in 2018 to base himself as a freelance touring musician. He has worked with numerous London groups, artists and producers including Tom Rosenthal & FRYARS. During 2019, he co-wrote a debut instrumental project in collaboration with British Franco-Chinese violinist Laure Chan. The music combines elements of jazz, rock, blues, latin and folk into a classical fusion sound world. The EP generated support from Universal Music and Audio Network during 2020. William is passionate about exploring the ever-expanding capabilities of string instruments and breaking down boundaries between genres and cultures.

Live at the International Cello Festival, Rutesheim