Procol Harum would be the first band with which Thomas would enjoy a steady working relationship, producing their albums "Home", "Broken Barricades" and "Procol Harum Live with the Edmonton Symphony Orchestra" during 1970-71.
Procol Harum стали первой группой, работая с которой, Томас был доволен результатом, продюсируя в 1970 и 1971 их альбомы "Home", "Broken Barricades" и "Procol Harum Live with the Edmonton Symphony Orchestra".