本规程详细说明并定义了用于控制模拟音频磁带录音机设备的特定类型信息。这些特定于类型的消息提供了控制和监视特定类型虚拟机的方法，并在更大控制消息语言的体系结构中实现

This practice details and defines the type-specific messages used for the control of analog audio tape recorder devices. These type-specific messages provide the means for the control and monitoring of a specific type of virtual machine and are implemented within an architecture of a greater control message language