e719. determining the duration of a midi audio file.txt

这里面包含了一百多个JAVA源文件

To create a Sequencer object, see e716 Loading and Playing Midi Audio. 
    // To create a Sequencer object, see e716 Loading and Playing Midi Audio
    
    double durationInSecs = sequencer.getMicrosecondLength() / 1000000.0;