Meta-commands 元命令
meta commands
元命令
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Meta commands were added to support MIDI files and System exclusive commands were provided for vendors to add features that were implemented by their hardware.
需要增加 Meta 命令来支持 MIDI 文件，并提供一些系统高级命令，增加厂商的特性，这些特性由他们的硬件系统实现。
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