Mellotrons have existed since 1963. Basically, the key triggered a motor which pulled a section of magnetic tape carrying recorded material through a head.The modern electronic keyboard (in one form) is merely an advanced mellotron. Pressing a key triggers the playing of a digitally recorded sample. Every key has it's own recorded note, and different key pressures can trigger different notes to be played. There can be so many samples per key, that it becomes *almost* undistinguishable from the 'real thing'.But here lies the problem: Will we only ever consider this instrument to be a substitute for acoustic equivalents? Can it not become truly an instrument in it's own right? Would J.S and C.P.E Bach not consider this a 'wonderous invention' worthy of being a performance instrument in it's own right? We know that C.P.E Bach was frustrated at the lack of interest in the 'Bogenclavier', keyboard instrument that had wheels that 'bowed' the strings when keys were pressed.I'm not suggesting electronic keyboards should replace acoustic instruments or even substitute them ...for there is always the danger of poor sonic judgements destroying the authenticity. But, I mean, if you create your own keyboard music rooted in the western tradition, there is a sense that the electronic keyboard simply isn't good enough.