Adding or.replacing just one note in any chord (on piano or guitar or any instrument that can play 3 notes at a time) can ...

If you look at a music or piano keyboard, start by locating the ... As you may know, major chords sound bright and happy, where as minor chords sound more melancholic or sad.

All the chords built on other notes in the scale of C are minor, except chord VII - the notes B – D – F, which is diminished. When a seventh is added to a chord this is known as a seventh chord.