Hello,
   Could someone please look at the pd_patch that I have attached. I am doing my best to make a patch that when triggered starts to play a backing track...in this case it is in the key of C Major.

    My patch allows this backing in C Major to be played, along with allowing me the user to play a melody on a MIDI keyboard over the backing.

I want to be able to modulate to different keys...say from C Major to G Major to A Minor, etc... I was thinking about using the "bendin" function thingy to do this...but it seems rather restrictive. COuld someone suggest another way?..I was thinking...if I press 2 keys that were predefined as a modulation signal it might work...

I also want to know how am I supposed to use different channels....eg...if the melody was played using the piano sound on my keyboard...how do I change the backing track channel to sound like something else....making sure that the melody is a piano.

    Any other comments on my patch would be appreciated too,

     Thanks,
         Marcus.