Celebrated classical pianist and conductor Daniel Barenboim will cancel a slew of performances after being diagnosed with a "serious neurological condition".
The Buenos Aires-born 79-year-old also pulled out of a string of concerts earlier this year over health issues.
On Tuesday, the Berlin-based Grammy winner announced via Twitter that other performances would soon be dropped.
He wrote: "My health has deteriorated over the last months,” and stressed that he must "now focus on my physical wellbeing".