Convert Foot/Sustain pedal to Tempo during playback

Is there a way of getting sonar to increase the tempo of a project that is playing back a midi drum loop by say 6 BPM each time a sustain/foot pedal is pressed ?
 
The idea is to use it for practicing my bass and to have the tempo increase without stopping playing.
 
I don' want to use any predefined automation as I don't know how long it will take at at certain speed to get the scale (or whatever) I'm practicing 'Under the fingers'.
 
Thanks for any help !