…the odds were always brutally against them, with approximately 70% of voice and opera degrees being awarded to sopranos and mezzos/altos. These singers typically pay more for school and sing less than their lower-voiced counterparts while there. Meanwhile, out in the field, the top 50 most-performed operas in the canon boast the inverse: approximately 62% named roles for bass, baritone, tenor and 35% for soprano and mezzo/alto (3% for kids)….