'Instill me with a greater sense of compassion so that I can be liberated'

It was this line in Avinu Malkeinuan, a Jewish hymn, which spoke to singer-songwriter Lior and led him to perform it at a tribute to the son of composer Nigel Westlake.

That chance meeting led to something remarkable, a song cycle called Compassion, which combines beautiful music with ancient Jewish and Arabic texts.