Play the Guzheng in GarageBand for iPhone
The guzheng is a traditional Chinese zither-like instrument with 21 strings mounted over bridges on a long, hollow, resonant body. The strings are tuned to a major pentatonic scale. The guzheng is played by picking or plucking the strings with the right hand, and pushing or pulling the strings with the left hand to change the pitch and create vibrato. The Yaozhi tremolo technique involves rapidly picking a string inward and outward repeatedly.
Open the Guzheng
Tap the Browser button
, swipe to World, then tap the Guzheng button.
Use the chord strips
Tap the Chord Strips button
to switch to Chords view.To play glissando, swipe a chord strip up and down. You can also tap to play individual notes.
You can add your own custom chords to play.
Play a pattern
Tap the Chord Strips button
to switch to Chords view, then tap the Controls button 
.Drag the Autoplay slider to one of the numbered positions.
Tap a chord strip. Tapping a different chord strip plays the same pattern with the notes of that chord.
Tap the chord strip again to stop the pattern playing.
Play individual notes
Tap the Chord Strips button
to switch to Notes view.Do any of the following:
Play notes: Tap the strings.
Bend notes: While tapping a string, drag left or right to lower or raise the pitch. Drag back and forth to create vibrato.
Strum: Swipe strings up or down.
Mute strings: Play notes by tapping or swiping the strings, then tap the Guzheng in the area to the left of the strings.
Play harmonics: Touch and hold the Guzheng in the area to the left of the strings, then play notes by tapping or swiping the strings.
Play notes of a particular scale: Tap the Scale button
, then tap the scale you want to play.
Play more precisely
You can use the zoom boxes to show a larger set of strings.
Tap the Zoom buttons
at the upper left and right.
The zoom boxes on the left show the lower-pitched strings, the zoom boxes on the right show the higher-pitched strings.
Add Yaozhi tremolo
Touch and hold the Yaozhi slider as you play. You can control the speed of the tremolo by moving your finger left or right.