Accidentally writing wrong variable

Questions
1

It’s not something I have encountered before, if memory serves me right
A simple structure here ( execute top bottom )
The kick pbind is routed to output 0, 1 beat per measure , tempoclock 121/60
Press play
Now , if accidentally writing the wrong ~variable in the \kik \pbind \output “~ringbus_wrong” instead of “~ringbus_a” , ( or any other wrong name ) we obviously won’t hear anything since there is no “~ringbus_wrong”
While still playing , now again type “0” or the correcet var name in \out , result is that the tempoclock is now ignored and the Pdef play default tempo
Also happens when for example typing a letter (undeclared var ) in on the the Pbind fields nstead of a value .



///////////
~ringbus_a=Bus.audio(s,2)

//..
(
SynthDef(\ringmod,
	{
		|in,out,xfade=0.5,freq=20,amt=0.5|
		var sig,processed;
		sig=In.ar(in,2);
		processed=sig*SinOsc.ar(freq=freq,mul:amt);
		processed=XFade2.ar(processed,sig,xfade);
		Out.ar(out,processed)
}).add
)

~ringer_a=Synth(\ringmod,[\freq,4,\amt,1,\in,~ringbus_a,\out,0,\xfade,-1])
~ringer_a.set(\freq,2,\amt,1,\xfade,-1)
~ringer_a.set(\freq,11,\amt,1,\xfade,-1);
~ringer_a.set(\freq,22,\amt,1,\xfade,-1);
~ringer_a.set(\freq,44,\amt,1,\xfade,-1);
~ringbus_a





(
SynthDef (\kick,
{
		arg pitch=50,patt=0.001,pdec=0.325,pcurve=(-50),pamt=100,att=0.001,dec=0.700,noisefreq=100,shamt=4,vol=0.3,out;
		var kick,penv,ampenv,noiseosc;
		penv=EnvGen.ar(Env([0,1,0],[patt,pdec],[0,pcurve]),doneAction:0);
		kick=SinOsc.ar(pitch+(penv*pamt))*0.9;
		noiseosc=LPF.ar(WhiteNoise.ar(0.1),noisefreq);
		kick=(noiseosc+kick)*EnvGen.ar(Env([0,1,0],[att,dec],[0,-5]),doneAction:2)!2;
		kick=SineShaper.ar(kick*shamt)*vol;
		kick=(HPF.ar(kick,20));
		Out.ar(out,kick);
}).add
)


(
Pdef(\kik,
	Pbind(\instrument,\kick,
		\dur,1,
		\pitch,Pseq([50,50],inf),
		\pdec,1,
		\shamt,Pseq([2,2,2,2],inf),
		\vol,0.8,
		\out,0,
))
)



Pdef(\kik).play(t);
Pdef(\kik).stop;

t=TempoClock(121/60).permanent_(true)
2

Do this instead,

TempoClock.default.tempo = 120/60;
Pdef(\kik).play();

Means you can only have one global tempo though.

Or this

(
Pdef(\kik,
	Pbind(\instrument,\kick,
		\dur, 1,
		\pitch, Pseq([50,50],inf),
		\pdec,1,
		\shamt, Pseq([2,2,2,2],inf),
		\vol, 0.8,
		\out, ~ringbuasdw_a ? 0 // here 0 is used if the varible is nil
))
)
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