TONE HOLES, diameters & ratios

altos

		1st generation		2nd generation		19th century French		early 20th c. French		early 20th c. French		early 20th c. American		early 20th c. American		mid 20th c. French		mid 20th c. French		mid 20th c. American		mid 20th c. American		later 20th c. French		later 20th c. French		late 20th c. Asian		late 20th c. Asian
Londeix	hole nr.	A.I. SAX 24495		A.I. SAX 31512		BUFFET-CN 4355		A.E. SAX 14723		A.E. SAX / SELMER 12023/916		BUESCHER truetone 230088		MARTIN handcraft 33907		BUFFET-CN superdynaction 9787		SELMER mark6 218025		CONN USN *) M271878		THE MARTIN magna 214294		BUFFET-CN prestige 38304		SELMER SA 80/II 519953		YAMAHA 62 D48674		YANAGISAWA 901 215682
		hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%	hole	%
Bb	1	no tone hole		no tone hole		no tone hole		no tone hole		38.8	36	39.0	42	40.8	43	37.8	36	38.3	35	39.9	43	37.0	34	37.6		38.5	36	40.0	39	38.2	37
8	2	35.1	32	35.0	34	35.0	33	39.3	40	38.5	40	39.3	46	40.5	47	37.8	38	38.4	41	39.9	47	40.7	45	40.6		40.5	46	38.8	43	38.2	43
C#	3	30.3	27	30.7	29	30.6	29	33.0	31	31.8	30	28.2	27	34.0	34	33.2	33	34.4	38	30.0	28	34.0	34	32.9		30.0	30	34.6	41	34.6	38
7	4	30.1	32	31.9	38	29.8	32	32.3	37	34.0	41	34.0	43	34.0	41	34.1	48	32.2	36	30.8	37	34.5	41	34.0		28.8	29	32.1	37	30.7	33
D#	5	28.3	31	30.2	35	27.9	31	33.1	45	33.3	45	30.7	42	31.5	38	28.6	34	32.6	41	30.8	40	31.4	38	28.4		33.0	42	32.8	44	32.7	42
6	6	33.0	45	35.4	58	34.3	51	36.4	59	37.3	65	35.3	58	35.7	56	32.4	49	36.8	63	34.7	56	32.2	44	32.1		35.7	59	37.4	66	35.7	59
5	7	25.1	27	23.5	28	23.8	27	27.5	38	29.9	46	27.0	37	27.5	38	24.8	33	29.7	45	28.0	40	27.3	34	25.0		29.8	46	30.0	47	29.9	47
Tf	8	no tone hole		no tone hole		no tone hole		no tone hole		25.9	37	13.5	11	13.7	12	23.2	32	23.5	33	21.0	25	14.0	11	20.7		23.5	33	23.4	32	23.7	33
4	9	23.4	26	22.8	30	23.3	30	26.0	37	27.9	43	25.7	39	27.4	42	24.6	36	28.0	47	28.0	45	27.5	40	24.9		27.9	45	28.2	46	27.9	46
	10	18.6	18	18.2	22	17.0	18	20.4	26	23.4	35	21.1	28	21.3	29	20.0	27	23.3	35	23.3	34	21.2	26	22.1		23.7	36	25.1	40	23.4	35
G#	11	16.8	17	16.7	19	17.2	19	19.0	25	23.0	37	21.1	32	21.4	31	20.1	29	25.7	48	22.0	35	21.2	28	22.1		24.6	43	25.1	46	24.0	41
3	12	21.4	32	21.5	37	18.4	26	24.9	47	23.6	45	24.5	48	23.4	43	22.9	43	23.7	46	22.8	42	23.5	39	22.9		23.6	45	24.8	49	24.5	49
Ta	13	no tone hole		no tone hole		13.7	16	19.1	31	19.6	35	20.3	37	17.7	27	19.1	35	19.7	33	18.8	32	18.7	27	18.9		20.0	35	20.0	35	21.0	39
2	14	16.0	19	16.3	24	19.5	32	19.6	33	20.0	36	19.2	34	19.4	33	18.9	34	19.8	36	19.6	35	18.0	26	18.5		19.9	35	19.9	36	20.0	40
P	15	17.7	25	17.5	31	11.7	13	15.0	21	15.3	24	14.0	20	11.9	14	15.3	25	14.9	23	14.2	20	13.6	17	15.3		15.1	23	15.8	25	15.0	23
Tc	16	no tone hole		no tone hole		13.7	19	17.3	31	19.6	42	21.8	52	20.2	44	17.2	32	19.8	41	18.3	36	18.7	35	17.2		20.0	41	20.0	42	21.3	48
1	17	18.6	33	19.0	41	18.4	37	17.9	35	19.0	43	20.0	47	17.2	32	17.7	38	19.3	42	19.3	42	19.5	40	18.1		19.5	43	20.2	44	19.5	43
	18	8.1	07	8.5	09	9.7	11	11.0	14	10.4	13	9.5	11	9.2	10	9.9	13	10.4	13	10.0	12	8.0	07	10.8		9.8	12	10.6	13	10.6	14
C1	19	9.1	09	9.6	12	8.9	10	13.0	21	13.7	25	11.8	19	9.2	11	12.8	22	13.4	24	11.8	18	13.4	22	14.0		13.2	23	13.4	23	13.4	23
C2	20	9.0	10	9.1	12	9.2	12	13.0	22	13.7	26	14.0	29	12.1	20	12.2	21	13.4	26	12.3	21	12.7	21	13.0		13.4	25	13.7	26	13.4	25
C3	21	7.0	07	7.1	08	8.7	11	13.2	25	13.8	28	14.0	31	11.7	20	11.9	21	13.4	27	11.9	21	12.7	23	13.3		13.4	27	13.8	29	13.4	26
C4	22	7.3	08	5.7	05	6.6	07	13.8	31	13.6	29	11.2	21	9.0	13	12.0	24	13.4	29	12.2	23	12.7	24	13.8		13.7	30	13.7	30	13.5	29
C5	25	no tone hole		no tone hole		no tone hole		no tone hole		no tone hole		no tone hole		no tone hole		no tone hole		13.2	31	no tone hole		no tone hole		14.2		13.8	31	13.6	31	13.5	31

*) 'USN' is short for United States Navy; identical to the 'lady face' instrument.