+ NodeDictionary {
    makeSourceSynthDef {
        ^SynthDef(this[\name], {
            var freq, signal, gate;

            gate = \gate.tr(0);
            freq = \freq.kr(220);
            
            if(this[\useFreqLag].asBoolean, {
                freq = Lag.kr(freq, \freqLag.kr(0.5));
            });
            
            signal = SynthDef.wrap(
                func: this[\func],
                prependArgs: [freq, gate]
            );
           
            Out.ar(
                \out.kr(0),
                signal,
            );
        });
    }
}