Ok, so I tried to do this:
… which tells you how to program the Arduino to respond to music/sound.
I got to step 3 and got very confused by all the files you have to download an then you have to put them into a library? (or something like that) Absolutely no idea?!
Prior to this, you are asked to plug in and download the software (Arduino – already got it). As soon as i had plugged it in just one LED illuminated and flashes randomly at different time intervals. That is all i have managed to make it do haha.