William Jack

William Jack is an Australian multi-style cellist and songwriter. He is best known for incorporating his jazz guitar background into an unconventional style of cello playing, with a passion for breaking boundaries between genres and cultures.

His music transitions seamlessly from virtuosic folk and bluegrass compositions to non-Western sound worlds. Since his classical studies in Vienna, William has forged his own cello pathway, touring Europe, Australia and the UK extensively.

He recently performed solo compositions from his album collection This Old Cello Box live on BBC Radio 3 at the Edinburgh Fringe and was selected to perform as a New Folk songwriter at the Kerrville Folk Festival in Texas. William received the best music award at the 2025 Adelaide Fringe and has worked with numerous world-renowned artists as a session musician and collaborator.

“A master of unconventional cello playing” – GLAM Adelaide

“Outstanding, a truly remarkable performance” – BBC Radio 3

“Specialist in all styles” – The Clothesline

“Cellopickin’ sensation” – DEBUT UK