Mikael Johansson Answers My MIDI Question

Mikael Johansson answers my question about MIDI numbers (via the ChucK mailing list while I slept last night):

http://www.harmony-central.com/MIDI/Doc/table2.html

Basically, number 60 is middle C, denoted as C4. The number steps one step
for each halftone. So you get which of the tones in the scale by
calculating notenumber%12, and which octave by integer division by 12.

I've copied the table from the MIDI page (and I've added the page link to the links list on the right over there):

Octave #	Note Numbers
	C	C#	D	D#	E	F	F#	G	G#	A	A#	B
-1	0	1	2	3	4	5	6	7	8	9	10	11
0	12	13	14	15	16	17	18	19	20	21	22	23
1	24	25	26	27	28	29	30	31	32	33	34	35
2	36	37	38	39	40	41	42	43	44	45	46	47
3	48	49	50	51	52	53	54	55	56	57	58	59
4	60	61	62	63	64	65	66	67	68	69	70	71
5	72	73	74	75	76	77	78	79	80	81	82	83
6	84	85	86	87	88	89	90	91	92	93	94	95
7	96	97	98	99	100	101	102	103	104	105	106	107
8	108	109	110	111	112	113	114	115	116	117	118	119
9	120	121	122	123	124	125	126	127