Background sound loops for a game.

I need some sounds made for a game. Currently using the ~6 second loop in the link below for testing, looking for something along those lines. [login to view URL] The game will play different background loop sounds, depending on how fast you're moving. So I need many different, shorter sounds loops. Any sound file should be able to loop with any of the other sounds, meaning if sound X is playing, then immediately after it stops, any random other short sound will start.. For this to work properly, each sound needs to be around 5-10 seconds long. They do not have to be exactly the same length but 6 seconds like the one above seems to work well. If the sound is too long then it wouldn't update the sound to match your speed quickly enough. So an average length of about 5-6 seconds would be good. So, what I have in mind exactly is something like 10-20 sound loops for each speed level, maybe even more for the first and second level: - Not moving or moving relatively slowly: maybe something a little bit slower than the one linked above.. - Moving at a "normal speed": speed around the same as the link above.. - Moving faster than "normal": a little faster speed at the sound.. - Moving fast: even a little faster, maybe a bit more noticeable change here.. - Moving very fast: even faster again By faster/speed in regards to the sound, I mean e.g. a higher BPM, or just giving a feeling of a "quicker" sound as opposed to a more calm/relaxing one.. And agian, each sounds needs to blend flawlessly with any other sound.