The first time I heard “Something Inside So Strong” by Labi Siffre was one of those seminal musical moments in my life, when lyrics and melody conjured something more. The pressure on the Apartheid state of South Africa was intense and at last the momentum was with the people of a land brutalised and oppressed as part of Europe’s 19th Century Colonial adventure and shame. Nelson Mandela was still in prison, but when Labbi sang we knew that would end soon.