Harmony refers back to the "vertical" Appears of pitches in music, which means pitches which have been played or sung together at the same time to create a chord. Commonly, What this means is the notes are played concurrently, although harmony might also be implied by a melody that outlines https://fima.gov.bd/public/files/assets/ckeditor/kcfinder/upload/files/best-islamic-childrens-songs-of-all-time.shtml