For Paul Goodman, a professor of organisational psychology at Carnegie Mellon University who has made a documentary on the dabbawalas, this is one of the critical aspects of their appeal to Western management thinkers.

ECONOMIST: Management trends

The Belgian-born Thielemans has played with Benny Goodman, Charlie Parker, Paul Simon, Miles Davis, Milt Jackson, Billy Joel, Ella Fitzgerald, Quincy Jones and many others.

NPR: Live: Schuur, Samuels, Caribbean Jazz Project