[C2Plus]

zz1 = new Sound(target1);
zz1.attachSound("z1");
zz1.start(0, 999999);


zz2 = new Sound(target2);
zz2.attachSound("z2");
zz2.start(0, 999999);

zz1.setVolume(0);
zz2.setVolume(100);