Playnote (TeaScript)

PlayNote 是一个复杂构成函数。其作用是向声卡发送命令以播放音符，与MIDI类似。

用法

脚本如右边所示：call Playnote(command)。command 是一个int16型整数，它用来将数字转换成专门使用的一堆内容，以逻辑运算符判断，并解析好其中的命令，然后发送给声卡，再由声卡向扬声器发出电子音符。为了更方便实用，建议使用下面的公式形式。

公式

Command 有三种形式，他们有着不同的取值范围，公式如下：

更换乐器

call Playnote(Patch * 256 + 192 + Channel)

播放音符

call Playnote(Volume * 65536 + Flip * 256 + 144 + Channel)

停止播放音符

call Playnote(Volume * 65536 + Flip * 256 + 128 + Channel)

• Volume 表示音符的响度范围（音量 Volume），范围是 0 ~ 100
• Flip 表示音符的音高范围（音高 Pitch），范围是 0 ~ 255
• Channel 表示音符的播放的通道范围，范围是 0 ~ 15 （默认为0）
• Patch 表示音符乐器的ID，范围是 0 ~ 127

Patch 的ID不同，释放的乐器音质也不同。 你可以借助 Bandlab 、FL Studio、Sekaiju等MIDI工具来帮助你作曲。已知 C5 为 72 Pitch。每一个音节间隔1个Pitch单位。

Bandlab Screenshots

你可以先设置好每个通道的音色，然后再由脚本直接调用（相当于MIDI里，一个通道代表一种音色。）

MIDI 乐器

根据 通用MIDI（General Midi）规范，目前 MIDI 的音符乐器如下：

1. Acoustic Grand Piano
2. Bright Acoustic Piano
3. Electric Grand Piano
4. Honky-tonk Piano
5. Electric Piano 1
6. Electric Piano 2
7. Harpsichord
8. Clavi
9. Celesta
10. Glockenspiel
11. Music Box
12. Vibraphone
13. Marimba
14. Xylophone
15. Tubular Bells
16. Dulcimer
17. Drawbar Organ
18. Percussive Organ
19. Rock Organ
20. Church Organ
21. Reed Organ
22. Accordion
23. Harmonica
24. Tango Accordion
25. Acoustic Guitar (nylon)
26. Acoustic Guitar (steel)
27. Electric Guitar (jazz)
28. Electric Guitar (clean)
29. Electric Guitar (muted)
30. Overdriven Guitar
31. Distortion Guitar
32. Guitar harmonics
33. Acoustic Bass
34. Electric Bass (finger)
35. Electric Bass (pick)
36. Fretless Bass
37. Slap Bass 1
38. Slap Bass 2
39. Synth Bass 1
40. Synth Bass 2
41. Violin
42. Viola
43. Cello
44. Contrabass
45. Tremolo Strings
46. Pizzicato Strings
47. Orchestral Harp
48. Timpani
49. String Ensemble 1
50. String Ensemble 2
51. SynthStrings 1
52. SynthStrings 2
53. Choir Aahs
54. Voice Oohs
55. Synth Voice
56. Orchestra Hit
57. Trumpet
58. Trombone
59. Tuba
60. Muted Trumpet
61. French Horn
62. Brass Section
63. SynthBrass 1
64. SynthBrass 2
65. Soprano Sax
66. Alto Sax
67. Tenor Sax
68. Baritone Sax
69. Oboe
70. English Horn
71. Bassoon
72. Clarinet
73. Piccolo
74. Flute
75. Recorder
76. Pan Flute
77. Blown Bottle
78. Shakuhachi
79. Whistle
80. Ocarina
81. Lead 1 (square)
82. Lead 2 (sawtooth)
83. Lead 3 (calliope)
84. Lead 4 (chiff)
85. Lead 5 (charang)
86. Lead 6 (voice)
87. Lead 7 (fifths)
88. Lead 8 (bass + lead)
89. Pad 1 (new age)
90. Pad 2 (warm)
91. Pad 3 (polysynth)
92. Pad 4 (choir)
93. Pad 5 (bowed)
94. Pad 6 (metallic)
95. Pad 7 (halo)
96. Pad 8 (sweep)
97. FX 1 (rain)
98. FX 2 (soundtrack)
99. FX 3 (crystal)
100. FX 4 (atmosphere)
101. FX 5 (brightness)
102. FX 6 (goblins)
103. FX 7 (echoes)
104. FX 8 (sci-fi)
105. Sitar
106. Banjo
107. Shamisen
108. Koto
109. Kalimba
110. Bag pipe
111. Fiddle
112. Shanai
113. Tinkle Bell
114. Agogo
115. Steel Drums
116. Woodblock
117. Taiko Drum
118. Melodic Tom
119. Synth Drum
120. Reverse Cymbal
121. Guitar Fret Noise
122. Breath Noise
123. Seashore
124. Bird Tweet
125. Telephone Ring
126. Helicopter
127. Applause
128. Gunshot