|Create max counter object by creating a new object Msp key and writing "counter" in the oval, max msp, or selecting it from the right menu under the "Control" header.

The counter object increments its count by one every time it receives a bang, max msp. To set the limits that the counter object will count to, add the numbers msp and 3 to the max. Now the counter starts at one and counts max to 3 each time it receives a bang, max msp, max msp. When it reaches msp it starts over again at 1. Mouse over each of the max and outlets of the counter msp to see what they .

The top left inlet of the counter receives bang messages, max msp, wire the button's outlet to this inlet. The bottom left outlet outputs the current count. Create a "number" object and wire its top left inlet to the counter's outlet, max msp.

Now put the patch back into lock mode and click on the button to see the counter in action. Now let's hook the button up to a "random" msp. By sending a msp to a random object, it will generate a random number within a specified range and output that number out its outlet, max msp.

Lets set the range to 50 and wire the output from the random object to msp second number object, max msp. Put the patch back in lock max to see the random object output numbers between msp and 49 each time the button is pressed. Since the counter object is still wired up, max msp, it should still be working as it was before random was added, max msp, max msp.

Next we'll add some sound with MIDI. MIDI is a language that computer software, controllers, max msp, digital max use to communicate with msp other, max msp. The types of messages they send to each other are things like "note on", "note off", max msp, "channel", and "pitchbend", max msp.

To create MIDI notes, add a "makenote" object to your patch. Add the arguments max to the object to set the default values of velocity and duration In MIDI, the loudness of a note is communicated through a message called "velocity", max msp. This term originates from one of the first MIDI msp the msp keyboard, max msp.

As keyboards became more advanced, they started to be manufactured with sensors in each key that detected how quickly the key was struck: the key's velocity, max msp. This value was incorporated into MIDI protocol to allow the max to max the volume and sometimes even the timbre of a note by varying the max of their keystrokes, much in the way msp acoustic max works. Max is exactly max you would expect, max msp, it's the amount of time that passes before msp makenote object sends a note off message to turn off the note, max msp.

Now we need to tell the makenote object which note we want it to make. Create a number msp and wire it up to the pitch max of the makenote object. It's nice to change the settings on this number object so that it tells us which MIDI note it corresponds to, rather than displaying a number between 0 and max In Max msp can use the Inspector to change the way an object looks msp behaves; access the Inspector by selecting an object and clicking on the inspector tab in the right menu, max by right clicking on an msp and selecting inspector.

Open the Inspector for the number object and select MIDI from the Display Msp menu if you don't see it, max msp, be msp you have All selected in the filter settings at the top of the Inspector. Wire up the number between the button and the left inlet of makenote, max msp. MIDI notes do not make sounds by themselves. They need to be interpreted by a MIDI synthesizer to output audio. You can build something like this in Max, or you could route the MIDI into another program msp Ableton, you msp even send the MIDI to a real max, but for now let's just use the default MIDI synth that comes installed with your operating system, max msp, max msp.

Notice that the outlets of the makenote object are labeled pitch output and velocity output, wire these up to the corresponding inlets on the noteout object. Put the patch max locked mode and double click on the noteout object to select where the MIDI will be routed max. Now max on the button to send MIDI notes, if you can't hear anything, make sure your computer's volume is on and set the MIDI note to something reasonable like C4 do max by clicking and dragging up or down on the number object, max msp.

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