To the accepted three cornerstones for innovation of undergraduate music major curricula—creativity, diversity, and integration—must be added fourth, professionalization, that is, the establishment of viable professional identities. This article focuses on a subset of Canadian music undergraduate singers, reporting on research into the structure and reality of the eight cultural domains in Canada, and investigating three important themes that emerge from statistics for the training of singers in postsecondary training: the range of work available to music graduates, the portfolio nature of working musicians’ careers, and the increasing significant role of technological fluency in musicians’ careers today.