The great US cellist responds to queries from social media, including such gems as: ‘Why are cellos so expensive?’, ’Why do cellists play Bach’s Cello Suite no.1 in every movie?’ and ’What does vibrato mean?’

Watch: Seven-year-old Yo-Yo Ma’s screen debut

Review: Yo-Yo Ma: Songs of Comfort and Hope

Read: 9 opinions on performance and career by cellist Yo-Yo Ma