In the early 19th century as well as in the
baroque and
classical periods, distinctions between
voices were not based so much on the range as in the tessitura and
color of the voice. There were two main groups: soprano and
alto. Their range was often blurred, relying more on tessitura to cast different roles in opera. In Italian
bel canto, the soprano did not have extremely high notes actually written (often just to
B5 or high
C6) and it was not until the "nightingale" type of sopranos such as
Jenny Lind,
Fanny Persiani,
Adelina Patti, and her imitators that ending the
cabalettas in a climactic high E6 or E6 became traditional as it was in the French
grand opera which became so popular when
Rossini moved to Paris. Singers however did
ornament higher than C6 but in a light and fast way as it was done still in the classical and baroque periods. Virtuosity was shown by mercurial agility, changes in
register and tessitura, perfect control of
dynamics and tonal coloration, not by
whistle-like high notes. For
contraltos on the other hand, they started to be more used in Rossini's bel canto operas for example, and to assume roles replacing the
castrati who by that time were almost extinct, and composers demanded a range often going as high as B5. This change in demand of the voice would give birth to the
soprano sfogato or
assoluta. These voices had in common with those of the greatest castrati the ability to sing widely contrasting tessituras, segments well into the contralto and segments in high soprano. == Characteristics ==