What are motifs in music and how do they contribute to the overall composition?

Motifs in music are recurring musical ideas or patterns that help create unity and structure within a composition. They can be melodies, rhythms, harmonies, or even specific instrumental sounds. By repeating motifs throughout a piece, composers can develop themes, create variation, and build emotional depth. This contributes to the overall coherence and impact of the music, enhancing the listener's experience and understanding of the piece.