Harmony refers back to the "vertical" Appears of pitches in music, which implies pitches which are performed or sung with each other concurrently to produce a chord. Usually, this means the notes are played simultaneously, Though harmony might also be implied by a melody that outlines a harmonic structure (i.e., https://micost.edu.my/EL/app/upload/users/5/5797/my_files/there-are-many-ways-to-download-songs-from-youtube.html