Using garage band and audition, I had to experiment with different sound effects and create and edit tracks for a 1 1/2 minute loop and a 2 minute loop. I used some sound effects from http://freesound.org to make the tracks more interesting.
I had an idea in which the game had the setting of the fire of London. Therefore, in audition, i included the sounds of flames and make the music fit the setting. I use strings in the background, by using garageband, to make the tracks key minor. I rearranged all the sounds in audition, and change the frequency and EQ to cancel out any unwanted blips in the track, and to create an effect in the background to sound like an engine.
I also came up with another concept in garageband set in modern day London. I used my piano at home and linked it to my computer to play out certain chords and arpeggios.