In standard zhengdiao tuning, string 1 sounds C2 (65.41 Hz) open. It carries 15 common stopped-note positions, from beyond the first hui down to hui 3.6, plus one harmonic on each of the thirteen hui. The table below lists them in full.
Open string 1
Open string — plucked without stopping
Position
Jianpu
Pitch
Hz
Open
倍低音1
C2
65.41
Stopped notes · 15 positions
Position
Jianpu
Pitch
Hz
徽外
倍低音2
D2
73.42
十徽八分
倍低音3
E2
82.41
十徽
倍低音4
F2
87.31
九徽
倍低音5
G2
98.00
七徽九分
倍低音6
A2
110.00
七徽三分
倍低音7
B2
123.47
七徽
低音1
C3
130.81
六徽四分
低音2
D3
146.83
五徽九分
低音3
E3
164.81
五徽六分
低音4
F3
174.61
五徽
低音5
G3
196.00
四徽六分
低音6
A3
220.00
四徽二分
低音7
B3
246.94
四徽
中音1
C4
261.63
三徽六分
中音2
D4
293.67
Harmonics · thirteen hui
Position
Jianpu
Pitch
Hz
一徽
高音1
C5
523.25
二徽
中音5
G4
392.00
三徽
中音3
E4
329.63
四徽
中音1
C4
261.63
五徽
低音5
G3
196.00
六徽
中音3
E4
329.63
七徽
低音1
C3
130.81
八徽
中音3
E4
329.63
九徽
低音5
G3
196.00
十徽
中音1
C4
261.63
十一徽
中音3
E4
329.63
十二徽
中音5
G4
392.00
十三徽
高音1
C5
523.25
The instrument is right here in your browser
The positions and tuning in this table were checked note by note by guqin artist Youdi Wang. To actually hear and play them, open the virtual guqin — nothing to install.