音符与频率关系对照表
(以a1 = 440Hz为标准)音名
MIDI编号
頻率
初始值
分频系数
音名C1#C1D1#D1E1F1#F1
MIDI编号24252627282930
頻率32.734.636.738.941.243.746.2
初始值69910732697657679658825288530587782
分频系数61162578035449651414485444576743290
音名C#C D#D E F#F
MIDI编号36373839404142
頻率65.469.373.477.882.487.392.5
初始值100491102212103824105365106800108162109450
分频系数30581288602724825707242722291021622
音名c#c d#d e f#f
MIDI编号48495051525354
頻率130.8138.6146.8155.6164.8174.6185
初始值115781116642117448118219118936119617120261
分频系数15291144301362412853121361145510811中央C音名c1#c1d1#d1e1f1#f1 MIDI编号60616263646566
頻率261.6277.2293.7311.1329.6349.2370
初始值123427123857124262124643125004125345125667
分频系数7645721568106429606857275405
音名c2#c2d2#d2e2f2#f2
MIDI编号72737475767778
頻率523.3554.4587.3622.3659.3698.5740
初始值127250127464127667127858128038128209128369
分频系数3822360834053214303428632703
音名c3#c3d3#d3e3f3#f3
MIDI编号84858687888990
頻率1047110911751245131913971480
初始值129162129269129370129466129556129640129721
分频系数1910180317021606151614321351
音名c4#c4d4#d4e4f4#f4
MIDI编号96979899100101102
頻率2093221723492489263727942960
初始值130116130170130221130268130314130356130396
分频系数956902851804758716676
音名c5
MIDI编号108
頻率4186
初始值130594
分频系数478
传统系统速记法数字法MIDI编号
subsubco ntra C-1 –
B-10 – 1113.75
subcontr
a C0 – B012 – 2327.5 contra C1 – B124 – 3555 great C2 – B236 – 47110 small C3 – B348 – 59220 one-
lined C4 – B460 – 71440 two-
lined C5 – B572 – 83880 three-
lined C6 – B684 – 951760
four-
lined C7 – B796 –
1073520
five-
lined C8 – B8108 –
1197040
six-
lined C9 – B9120 –
12714080
八度命名系统
A的频率
[赫兹]
A2#A2B2
212223
27.529.130.9
583456234366347
727276872964725 G1#G1A1#A1B1 3132333435 4951.95558.361.7 9025692536947089676798657 4081638536363643430532415 G#G A#A B 4344454647 98103.8110116.5123.5 110664111804112890113905114878 2040819268181821716716194 g#g a#a b 5556575859 196207.7220233.1246.9 120868121443121981122492122972 102049629909185808100 g1#g1a1#a1b1 6768697071 392415.3440466.2493.9 125970126256126527126782127023 51024816454542904049 g2#g2a2#a2b2 7980818283 784830.6880932.3987.8 128521128664128799128927129047 25512408227321452025 g3#g3a3#a3b3 9192939495 15681661176018651976 129796129868129936130000130060 12761204113610721012 g4#g4a4#a4b4 103104105106107 31363322352037293951 130434130470130504130536130566 638602568536506
记数器为17位，最大值为131071