A "classic" FM-synthesis tone using two oscillators
(carrier and modulator), fed into an adsr object to produce a
"bell"-like (percussive) envelope.
#osc: type freq phase gain input deviation
modOsc osc sin 273 0 1 none 0
carOsc osc sin 440 0 .8 modOsc .007
myEnv adsr carOsc .001 0 1 1