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MORE ABOUT MIDI
General MIDI
General MIDI (GM) is an enhancement to the original MIDI specification
designed to make it easy to play back a Standard MIDI File on a variety of
instruments, with some assurance that the proper sounds will be heard.
General MIDI assigns specific sounds to individual program change num-
bers, (for example, sending MIDI program change 1 message to a GM
instrument will always call up a Grand Piano sound). The exact quality of
the Grand Piano sound always depends on the capabilities of the particular
synthesizer.
The General MIDI specification divides sounds into instrument groupings,
each of which represents a family of instruments or class of sounds. MIDI
channel 10 is defined in General MIDI as being used for percussion, with
each percussion sound being assigned to a specific note number.
General MIDI instruments respond to a number of controllers, specifically:
Modulation Wheel (MIDI Continuous Controller #1), Main Volume
(CC#7), Expression (CC#11), and Sustain Pedal (CC#64).
Table 2: General MIDI Level-1 Sound Set
1. Acou Grand Piano
24. Tango Accordion
47. Orchestral Harp
70. English Hom
2. Bright Acou Piano
25. Acou Guit (nyion)
48. Timpani
71. Bassoon
3. Elctric Gmd Piano
26. Acou Guit (steel)
49. String Ensemble 1
72. Clarinet
4. Honky-tonk Piano
27. Elec Guit (jazz)
50. String Ensemble 2
73. Piccolo
5. Elec Piano 2
28. Elec Guit (clean)
51. Synth Strings 1
74. Flute
6. Elec Piano 1
29. Elec Guit (muted)
52. Synth Strings 2
75. Recorder
7. Harpsichord
30. Overdriven Guitar
53. Choir Aahs
76. Pan Flute
8. Clavi
31. Distortion Guitar
54. Voice Oohs
77. Blown Bottle
9. Celesta
32. Guit Harmonics
55. Synth Voice
78. Shakuhachi
10. Glockenspiel
33. Acoustic Bass
56. Orchestral Hit
79. Whistle
11. Music Box
34. Elec Bass (finger)
57. Trumpet
80. Ocarina
12. Vibraphone
35. Elec Bass (pick)
58. Trombone
81. Lead 1 (Square)
13. Marimba
36. Fretless Bass
59. Tuba
82. Lead 2 (sawtooth)
14. Xylophone
37. Slap Bass 1
60. Muted Trumpet
83. Lead 3 (calliope)
15. Tubular Bells
38. Slap Bass 2
61. French Hom
84. Lead 4 (chiff)
16. Dulcimer
39. Synth Bass 1
62. Brass Section
85. Lead 5 (charang)
17. Drawbar Organ
40. Synth Bass 2
63. SynthBrass 1
86. Lead 6 (voice)
18. Percussive Organ
41. Violin
64. SynthBrass 2
87. Lead 7 (fifths)
19. Rock Organ
42. Viola
65. Soprano Sax
88. Lead 8 (bass+lead)
20. Church Organ
43. Cello
66. Alto Sax
89. Pad 1 (new age)
21. Reed Organ
44. Contrabass
67. Tenor Sax
90. Pad 2 (warm)
22. Accordion
45. Tremelo Strings
68. Baritone Sax
91. Pad 3 (polysynth)
23. Harmonica
46. Pizzicato Strings
69. Oboe
92. Pad 4 (choir)