In the context of introducing part-singing, why might ostinatos be particularly effective?

Ostinatos are particularly effective in introducing part-singing because they provide a simple repetitive pattern for singers. This simplicity allows singers to focus on maintaining their part without getting overwhelmed by the complexity of the music. The repetitive nature of ostinatos enables singers to build confidence and engage with the rhythmic and melodic aspects of the piece. As they become comfortable with the ostinato, they can more easily coordinate with others who are singing different parts, thus fostering a collaborative and harmonious group dynamic. This makes ostinatos an ideal pedagogical tool for teaching part-singing, as they create a foundation that supports learning and mastery of more intricate vocal harmonies.