Swedish conductor Eric Ericson (1918-2013).
He  was, for the great majority of choir conductors and choir singers throughout the world, the unsurpassed master in the field of choir directing. His entire career was devoted to choral music; his work has not only given great acclaim to his own choirs but has significantly contributed to a breakthrough in establishing the status and merit of choral music and singing in choirs as a highly valuable form of music making.