Max score not rendering canvas

Sorry, John, this is a little off-topic:

Does anyone actually recognize the wrapped Max mixer objects? (MSPMixerGainControl, etc.). Something to do with the side toolbar Audio Meter or the Max version 6 audio mixer engine?

Run the following javascript in a js object:

// ------------------------------------------------
// The following classes are referenced in jsextensions/maxclasswrap.js.
// The MSPMixer... objects are mysterious (?).
/*
maxclasswrap("dictwrap", "Dict");
maxclasswrap("packages", "Packages");
maxclasswrap("polybuffer", "PolyBuffer");
maxclasswrap("mixer_gaincontrol", "MSPMixerGainControl");
maxclasswrap("mixer_audiometer", "MSPMixerAudioMeter");
maxclasswrap("mixer_cpumeter", "MSPMixerCPUMeter");
maxclasswrap("mixer_global", "MSPMixerGlobal");
*/
// Are there existing instances of these objects?
var gain = new MSPMixerGainControl("gain")
var audio = new MSPMixerAudioMeter("audio")
var cpu = new MSPMixerCPUMeter("cpu")
var mixer = new MSPMixerGlobal("mixer")

bang()

function bang()
{
    post("\n-------------------------\n")
    printobject(gain,"gain")
    printobject(audio,"audio")
    printobject(cpu,"cpu")
    printobject(mixer,"mixer")
}
function setmute(val) {
    gain.mute=val
}
function setgain(val) {
    gain.gain=val
}
function printobject (obj, name)
{
    if (( typeof obj == "number") || (typeof obj == "string") ) {
        post( name +  " :" + obj + "n");
    } else {
        post(name+":\n")
        for(var k in obj){
            post(" ")
           if (obj[k] && typeof obj[k] == "object")
            {
                    printobject(obj[k], name + "[" + k + "]");
            } else {
                    post(name + "[" + k + "] : " + obj[k] +"\n")
            }
        }
    }
}