profonts Sonata and profonts Concerto are closely related to each other. In fact, the only difference between the two related fonts is in the upper case characters. profonts Concerto's upper cases are more complex, swashier than those in profonts Sonata. One is a perfect complement to the other, and that is why they are offered together at special rate. Both fonts contain about 370 glyphs covering the complete Latin set for Western and Eastern Europe.