30 or 31 string Paraguayan Folk Harp String Chart

30/31 STRING PARAGUAYAN HARP STRING ORDER CHART 
FOR HARPS MADE BY ROBERT HART/ POLAR BEAR HARP MUSIC

All length and diameter measurements are in inches as the strings come from the USA which uses imperial measurements  To convert to millimeters multiply by 25.4
*The top B was added to later models only

NYLON STRING TENSION FORMULA  INCHES/POUNDS
String No	NOTE	Freq Hz	L inches	Diam	Tension Pounds	%BS
*1	B	1975.533	3.15	0.025	7.477	33.8
2	A	1760	3.98	0.025	9.477	42.9
3	G	1567.982	4.646	0.025	10.247	46.4
4	F	1396.913	5.315	0.025	10.646	48.2
5	E	1318.51	5.984	0.025	12.023	54.4
6	D	1174.659	6.693	0.025	11.937	54
7	C	1046.502	7.362	0.025	11.464	51.9
8	B	987.767	8.071	0.028	15.396	55.6
9	A	880	8.858	0.028	14.721	53.1
10	G	783.991	9.528	0.028	13.516	48.8
11	F	698.456	10.354	0.028	12.67	45.7
12	E	659.255	11.142	0.032	17.071	47.2
13	D	587.33	11.929	0.032	15.532	42.9
14	C	523.251	12.717	0.032	14.009	38.7
15	B	493.883	13.583	0.032	14.239	39.3
16	A	440	14.567	0.032	12.999	35.9
17	G	391.995	15.63	0.036	15.033	32.8
18	F	349.228	16.811	0.036	13.803	30.1
19	E	329.628	17.992	0.036	14.085	30.7
20	D	293.665	19.094	0.036	12.592	27.5
Mid C 21	C	261.626	20.472	0.04	14.183	25.1
22	B	246.942	21.85	0.04	14.394	25.5
23	A	220	23.228	0.045	16.34	22.8
24	G	195.998	24.331	0.045	14.23	19.9
25	F	174.614	25.984	0.0036/010	17.2	39.3
26	E	164.814	28.031	0.0036/010	17.834	40.7
27	D	146.832	29.528	0.0036/010	18.215	43.6
28	C	130.813	31.969	0.036/010	19.454	40.5
29	B	123.471	34.252	0.040/010	23.35	33.5
30	A	110	36.614	0.045/013	28.951	36.8
31	G	97.999	38.583	0.045/.015	28.272	36.1
Total Tension Approx					471.359

last revised August 1997