Hi. The answer is pretty simple, and might find you smacking your forehead... In Pure Data, the way most objects work is that any message sent to the left inlet makes the thing go, and anything sent to any other inlet sits at that inlet and waits for the left inlet. In your patch, when the [metro] object sends a bang, it goes down two different connections, but you can't tell which way it goes first; it can't go at the exact same time. In order to have the quotient be that of the same two numbers that are shown as dividend and divisor, the... well the bottom number has to go first, because when the top number gets sent, the quotient is taken, even if the bottom number isn't there yet. If the bottom number isn't there yet, the previous bottom number is used.

The solution is to use a [trigger] object. The bang sent by the [metro] object is then split in two, and sent down the two connections in a specific order (right to left), sending the bottom number the whole way before starting the top number. Also, your setup allowed the possibility of dividing by zero. I don't know if you noticed. My version adjusts the array to be 1-12 instead of 0-11, and uses a trigger to control the order of bangs.

-Chuckk

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