Final answer:
The basso continuo played a lesser role in the Classical era due to the increasing popularity of music composed for amateur musicians and the changing performance contexts. The rise of the middle class and the shift in audience preferences also contributed to the decline in the importance of the basso continuo.
Step-by-step explanation:
In the Classical era, the basso continuo played a less important role compared to the Baroque era due to a shift in musical preferences. One reason for this shift was the increasing popularity of music composed for amateur musicians during the Classical era. Composers began to write music that was more accessible and enjoyable for these amateur musicians. Additionally, mastering the art of improvisation, which was a key aspect of playing the basso continuo, requires tremendous skill and was less necessary in the Classical era.
During the Classical era, the rise of the middle class also had an impact on music. Classical composers were often supported by aristocratic patrons and performed for a small, upper-class audience that had a deep understanding of music. However, in the Romantic era, composers started writing music for public concerts and festivals, catering to larger audiences of paying customers. This change in audience and performance context further diminished the importance of the basso continuo.
In conclusion, the basso continuo played a lesser role in the Classical era compared to the Baroque era because more music was composed for amateur musicians and the rise of the middle class led to a change in performance contexts and audience expectations.