Kettel has uploaded a tease of an MP3, “Tussen” (MP3), as the monthly “MP3 rotor” entry at kracfive.com. Why a tease? Well, because the delicate melody and vibrant array of understated accompaniment (bouncy keys, a distant bit of plunky nylon strings, even a flute line) come to a sudden close with a little human laughter. Why is someone laughing? Because the whole thing clocks in at under a minute. Now that’s just not fair.