I need a 20 second countdown soundtrack. The music should be something lively that encourages people to move around and be active. At the end of the 20 seconds, a sound should play, like a symbol, gong or cool sound effect. This sound should signify the end of the activity.
The above 20 seconds and final sound effect should then repeat another 11 times, for a 12 x 20 seconds = 4 minute total sound track.
I need this completed in the next 12-15 hours.