What are functions of modulation in music? (Select all that apply.)Multiple select question.Keep instruments in tuneProvide contrastCreate varietyMaintain a key

The functions of modulation in music are to provide contrast and create variety. Modulation is the process of changing from one key to another in a piece of music. This can add interest and complexity to the music, providing contrast between different sections and creating variety in the overall sound. However, modulation does not keep instruments in tune or maintain a key. Instead, it intentionally changes the key.