It would be useful to pass from House BPM to Trance BPM without making a BPM "oops" switching or a odd feeling from slow Techno/Trance songs or speedy House effect were we always must increse and decrease the Master BPM to make it possible.
I'm pretty sure that this surely won't be hard to implent with JUCE.
BTW, I just bought this program and it's really neat! Thanks for the creation of this 2nd jewel! (Where FL Studio is the 1st of course)