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。
2
Remember that the MidiOut client has only subscribed to MIDI short messages and a special closing event so we can ignore other MIDI events such as Meta or System-Exclusive.
记住 MidiOut 客户端只订阅了 MIDI 短消息和特别的结束事件，因此可以忽略其他的 MIDI 事件，例如 Meta 或者 System-Exclusive。
3
This scheme is used successfully in the remote control system of a MIDI music learning machine.
该方案已被成功地应用于MIDI音乐学习机的遥控系统。
词源
1
midi system:迷笛音响系统
缩写自Musical Instrument Digital Interface,数字交互界面音乐乐器。