file: 1000_GeneralUserGS_sf2_file.js
variable: _tone_1000_GeneralUserGS_sf2_file
MIDI: 100. FX 5 (brightness): Synth Effects
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2. C C# D D# E F F# G G# A A# B
3. C C# D D# E F F# G G# A A# B
4. C C# D D# E F F# G G# A A# B
5. C C# D D# E F F# G G# A A# B
6. C C# D D# E F F# G G# A A# B