Audio - Current Graph
Then how would the Current/Time graph would look like


That depends on the circuit element the voltage is across.  If the voltage in your graph is the voltage across a resistor, the current graph will have the same form since, for a resistor, the voltage and current are proportional.

$$i = \frac{v}{R}$$

If the voltage is across a capacitor, the current graph will be proportional the time derivative of the voltage waveform.

$$i = C\frac{dv}{dt} $$

If the voltage is across an inductor, the current graph will be proportional to the time integral of the voltage waveform.

$$i = \frac{1}{L}\int_\infty^t v(\tau) d\tau $$

If the voltage is across a diode, the current graph will be exponential in the voltage

$$i = I_S(e^{\frac{v_d}{nV_T}} -1)$$

And so on...