GObject
        GPS04AudioTrackExporter
        GInitiallyUnowned
            GtkObject
                GtkWidget
                    GPS04TimeRuler
                        GPS04HTimeRuler
        GPS04MidiEvent
            GPS04MidiNoteOffEvent
            GPS04MidiNoteOnEvent
            GPS04SmfEndOfTrackEvent
            GPS04SmfTimeSignatureEvent
        GPS04MidiVariableLengthQuantity
        GPS04RhythmPatternExporterToSmf
        GPS04SmfChunk
            GPS04SmfHeader
            GPS04SmfTrack
        GPS04SmfTrackEvent
        GPS04StandardMidiFile
        GPS04WavHeader
        PS04AudioDecoder
        PS04Stream
            PS04File
                PS04AudioTrack
                PS04ProjectFile
                PS04RhythmFile
            PS04MemoryStream
        PS04AudioTrackMatrix
        PS04RhythmNote
            PS04BassNote
            PS04DrumNote
            PS04RhythmPatternEndNote
        PS04Counter
        PS04Mixer
        PS04MixerChannel
        PS04Project
        PS04ProjectFolder
        PS04ProjectFolderItem
        PS04RhythmPattern
        PS04RhythmEvent
            PS04RhythmPatternEvent
            PS04RhythmSongEvent
        PS04RhythmSong
    GInterface
        PS04Streamable