$7$ Lab Task $2$: Play a Song with our Random Rhythm

Now we have a random rhythm$,$ but a score is nothing without a fun musical tune. We want our RandomMelody class to allow users

to add some musical notes.

$7\mathrm{.}1$ Create a addASong method

Let's add this new method to our RandomMelody class.

The addASong class takes $2$ parameters:

An integer representing the instrument.

An integer array representing the pitch list