* `Chord` or such for the arbitrary [explicit chords](https://abcnotation.com/wiki/abc:standard:v2.1#chords_and_unisons), a set of notes grouped together to be played simultaneously (e.g. `[CEGc]`) * `NamedChord` or such for chords represented by [chord symbols](https://abcnotation.com/wiki/abc:standard:v2.1#chord_symbols), e.g. `"Am7"`, used to annotate suggested accompaniment - a step towards ultimate goal of automatic chord suggestions - an alternate chord can be added in parens directly after (`"G(Em)"`; maybe more with comma sep...)
Chordor such for the arbitrary explicit chords, a set of notes grouped together to be played simultaneously (e.g.[CEGc])NamedChordor such for chords represented by chord symbols, e.g."Am7", used to annotate suggested accompaniment"G(Em)"; maybe more with comma sep...)