In PD you can only store one value per x step. That means you can not make a sequencer that uses polyphony. In real world, arrays are used to store multiple values and can have even 3 or more dimentions, values could be stored on any point without one affecting another.
Are there any alternatives to this in Pure Data? Currently I assume it is only possible to do this by writing an external file/list, like xml, but that really isn't the most efficient solution.
Is it possible to actually store real value on any coordinate in array, like [x2 y10 23]?