Harmony refers to the "vertical" Appears of pitches in music, which implies pitches which can be played or sung together simultaneously to create a chord. Generally, this means the notes are played at the same time, While harmony might also be implied by a melody that outlines a harmonic framework https://micost.edu.my/EL/app/upload/users/5/5797/my_files/download-videos-from-youtube-to-mp3-without-application.html