What happens when the player holds down a bar on autoharp that causes only notes of chord to sound?

The chord bar on an autoharp is used to play a full chord. When the player presses the chord bar, the notes that make up the chord are automatically played. This allows the player to play a chord with one hand, leaving the other hand free to play the melody.

The notes that are played when the chord bar is pressed are determined by the chord chart for the autoharp. The chord chart is a diagram that shows which notes to press on the chord bar for each chord.

For example, the chord chart for the C major chord shows that the player should press the C, E, and G bars on the chord bar. When the player presses these bars, the C major chord will be played.

Chord bars are a convenient way to play chords on an autoharp. They allow the player to play a full chord with one hand, leaving the other hand free to play the melody.