https://openjdk.java.net/projects/openjfx/javafx-media/: OpenJFX JavaFX
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public interface javafx.scene.media.AudioSpectrumListener
  minor version: 0
  major version: 59
  flags: flags: (0x0601) ACC_PUBLIC, ACC_INTERFACE, ACC_ABSTRACT
  this_class: javafx.scene.media.AudioSpectrumListener
  super_class: java.lang.Object
{
  public abstract void spectrumDataUpdate(double, double, float[], float[]);
    descriptor: (DD[F[F)V
    flags: (0x0401) ACC_PUBLIC, ACC_ABSTRACT
    MethodParameters:
            Name  Flags
      timestamp   
      duration    
      magnitudes  
      phases      
}
SourceFile: "AudioSpectrumListener.java"