such SHORT interval lengths

For quite awhile now I have wanted a playlist or app that would cycle my workout music between fast/slow as my intervals were changing from hard to easy. I was so excited when I learned of this app! It does exactly what I want! Next came my disappointment...the interval length selector has a limit of 90 seconds. Wow! I do ultra-distance cycling and have intervals that are up to 30 minutes in length. My shortest interval is 2 minutes, which is still beyond the ability of this app. Developer:please understand that some athletes have some very very long intervals during an even longer workout (some of my rides are up to 6 hours, with six 30 minute intervals with 10 minute rest between intervals). Make this app adjustable to allow intervals up to 30 minutes and sessions up to 4 fours. Then, this app would be world class!

dogfart10 about ITGO - Interval Trainer GO - The Ultimate Gym and Outdoor Timer for Cardio Health, Fitness and Well Being