Revert "Changes to Music.h and Music.cpp"

This reverts commit 8b24803aa2.

software/apps/Motion/Center_with_2_oscillators/Center_with_2_oscillators.ino

@@ -1,30 +1,25 @@
-//Center
+//Center two motors control two frequencies. (jb&bv 25Jan13)
 //uses a variable force (pwm duty)
 //If it feels like a mountain - pushing away from center, then
-//reverse the motor leads
+//reverse the motor leads or the sign of forceA or forceB
 //or for a quick fix in the code: change if(f < 0) to if (f > 0)
 
-//#define NUM_OSCILLATORS 3
-//#include "config.h"
-#include <Motor.h>
-#include <Music.h>
-#include <Midi.h>
+// notes to me (bv)
 
+#include "Motor.h"
+#include "Music.h"
 
 int posA, posB;    // position from analogRead
 int forceA, forceB;  // computed from pos and k
-int kA = -5;  // spring constant
-int kB = 1;  // spring constant
+int kA = 2;  // spring constant
+int kB = 2;  // spring constant
 //int duty;   // pwm duty for Timer1 (range 0 - 1023) 10-bit resolution
  
 void setup() 
 {
   MotorA.init();
-  Music.init();  
-  Music.setWaveform(1); // only works with 8bit waveforms
-  //Music.setGain2(0);
-  //Music.setGain3(0);
-  Midi.init();
+  Music.init();  // 12-bit sine default (see .cpp file)
+  //Music.setWaveform(0); // only works with 8bit waveforms
 }
 
 void loop() 
@@ -35,18 +30,12 @@ void loop()
   
   Music.setFrequency1(posA);
   Music.setFrequency2(posB);
-  //Music.setDetune((posB/8)/5120.0);
   
-  forceA = kA * (512 - posA);
+  forceA = - kA * (512 - posA); // check wiring???
   forceB = kB * (512 - posB);
-  //duty = abs(force);
-  //duty = min(512, duty);
   
-  MotorA.torque(forceA);
+  MotorA.torque(forceA); // forceA [-512 to +511] ???
   MotorB.torque(forceB);
-  
-  Midi.checkMidi();
-
     
 }