Part appendix. Tree Index

    GObject
    ╰── GInitiallyUnowned
        ╰── GtkWidget
            ├── GtkGrid
            │   ├── AgsMachine
            │   │   ├── AgsSF2Synth
            │   │   ╰── AgsFFPlayer
            │   ╰── AgsEffectBridge
            │       ╰── AgsFFPlayerBridge
            ╰── GtkBox
                ├── AgsEffectBulk
                │   ╰── AgsFFPlayerBulkInput
                ├── AgsEffectLine
                │   ╰── AgsFFPlayerInputLine
                ╰── AgsEffectPad
                    ╰── AgsFFPlayerInputPad