The tuning systems were not always reliable during the Baroque period. Why did

composers use key signatures?
(1 point)
to encourage use of percussion
to avoid harsh-sounding keys
to avoid creating harmonies in a piece
to encourage use of opera

The correct answer is: to avoid harsh-sounding keys.

During the Baroque period, the tuning systems were not always reliable, leading to certain keys sounding dissonant or out of tune compared to others. By using key signatures, composers could choose keys that were more harmonious and avoided the harsh-sounding ones. This allowed for a more pleasing and balanced sound in their compositions. The use of key signatures also helped musicians interpret and perform the music accurately, as they could quickly identify the key and its associated tonalities.