(
s.waitForBoot {
    ~buf1 = Buffer.read(s, "/home/lcoogan/snd/samples/freesound/vocals/ymaaela/333264__ymaaela__female-vocal-cut-ups-collage.mono.wav");
    ~buf2 = Buffer.read(s, "/home/lcoogan/snd/samples/freesound/vocals/ymaaela/attribution/330909__ymaaela__discordant-clip.mono.wav");

    SynthDef(\crossfadeBuf, { |out=0, buf1, buf2, crossfade=0, rate=1|
        var sig1 = PlayBuf.ar(1, buf1, rate * BufRateScale.kr(buf1), loop: 1);
        var sig2 = PlayBuf.ar(1, buf2, rate * BufRateScale.kr(buf2), loop: 1);
        var mix = XFade2.ar(sig1, sig2, (crossfade * 2) - 1);
        Out.ar(out, mix ! 2);
    }).add;

    s.sync;

    ~synth = Synth(\crossfadeBuf, [\buf1, ~buf1.bufnum, \buf2, ~buf2.bufnum]);

    // Create a routine to update crossfade randomly every ~1 second with smooth transitions
    Routine({
        loop {
            var target = rrand(0.0, 1.0);  // random target crossfade between 0 and 1
            // Smoothly glide to the new target over 1 second
            ~synth.set(\crossfade, target, \lag, 1);
            1.wait;  // wait 1 second before choosing a new target
        }
    }).play;
};
)