Harmony refers back to the "vertical" sounds of pitches in music, which suggests pitches that are played or sung together concurrently to produce a chord. Normally, What this means is the notes are played simultaneously, While harmony might also be implied by a melody that outlines a harmonic composition (i.e., https://emmaklewis.sites.gettysburg.edu/scalar/saliman//tempat-download-musik-secara-legal-lihat-disini.html