 
     /// Internal audio unit
     public private(set) var internalAU: AudioUnitType?
+
+    public var connections: [Node] { [] }
+    public var avAudioNode: AVAudioNode
 
     // MARK: - Parameters
 

        filterSustainLevel: AUValue = 1.0,
        filterReleaseDuration: AUValue = 0.0
    ) {
        super.init(avAudioNode: AVAudioNode())

        instantiateAudioUnit { avAudioUnit in
            self.avAudioNode = avAudioUnit


/// Synth
///
public class Synth: Node, AudioUnitContainer {
    /// Four letter unique description "snth""
    public static let ComponentDescription = AudioComponentDescription(instrument: "snth")

