A player doing a chord (mix of a variety of notes) on the guitar Harmony refers to the "vertical" Seems of pitches in music, meaning pitches which have been played or sung with each other simultaneously to make a chord. Normally, This suggests the notes are performed concurrently, although https://drill88888.bligblogging.com/31947597/the-smart-trick-of-music-that-no-one-is-discussing