<code>
~out.play;
~out = ~f * 0.1;

(
~f = { 
        var u, in, din, a, b;
        a = MouseX.kr;
        b = MouseY.kr;
        in = ~f.ar;
        din = DelayL.ar(in, 0.3, LFNoise1.kr(0.1).range(0,0.3));
        
        u =  SinOsc.ar(LinExp.kr(a, 0, 1, 200, 800), in * [1, 1.01] * (1-a))
                +
                SinOsc.ar(LinExp.kr(b, 0, 1, 100, 900), din * [1.01, 1])
                *
                Decay2.ar(Dust.ar(5), 0.1, 0.5, 1, 0.1);
        RLPF.ar(u, LinExp.kr(LFNoise1.kr(0.1), -1,1, 200, 1000), 0.2);
};
)
</code>