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