Function mergeSoundFonts

mergeSoundFonts(
fonts: readonly (ArrayBuffer | ArrayBufferView<ArrayBufferLike>)[],
): ArrayBuffer
Joins several SoundFont 2 files into one, presets in the order given. When two files carry the same (bank, program) the first wins and the other's preset, instruments and samples are dropped, so the result never holds a voice nothing can reach. This is how single-instrument files (a per-program font collection) become the one file a game ships; subsetSoundFont then trims it like any other.
Parameters
- fonts: readonly (ArrayBuffer | ArrayBufferView<ArrayBufferLike>)[]
Returns ArrayBuffer
Example
```
import { mergeSoundFonts, parseSoundFont } from '@datamoc/mwg/audio';

declare const pianoBytes: ArrayBuffer;
declare const drumsBytes: ArrayBuffer;

const merged = mergeSoundFonts([pianoBytes, drumsBytes]);
console.log(parseSoundFont(merged).presetCount);
```
- Defined in src/audio/SoundFont.ts:585