Hi All
I have been hacking away at a step sequencer in Processing which is based on the excellent, simple and effective version created by Ian Bartholomew http://www.ianbartholomew.com
I have switched it to play directly rather than send a label via OSC to chuck, and have used the minim library.
So far, so good- but the sequencer will now skip playback on some sweeps of the tempo (play) line, and there is a lack of clarity to the notes (ie they pop and crackle a bit after playing).
Could folks help? To spot why I am getting sweeps of the notes without playback (this seems not to follow a pattern, it can play well for three or four loops and then go silent), and also if there's a cleaner way of playing the notes? Much appreciated - I am a fairly newbie and this is an exercise in learning for me!

calling the notes and sending them the label for id
Code:

 public void play(int pos, float freq) {

    if (!played[pos]) { // if the note hasn't been played already (this assures that the note is only played once)...
	//myOSC.play(label, freq, slider.gain());  //.. send out the OSC info..
	
	sounds.play(label);
	played[pos] = true; // and set it to played  

    }
 

the tab that deals with playing the sounds
Code:

public class Sounds{
  
//String label;
//AudioPlayer kick;
//Audioplayer bassguitar;
 
 
public Sounds() {


  
 
 

    app.registerDraw(this);  // this registers the draw events
   // app.registerMouseEvent(this); // this registers the mouse events

  } 

  void draw(){
  
  }
  
  void play(String _label) { //going to add-- float _freq, float _gain
  


   // myMessage.add(freq);  // freqency
   // myMessage.add(gain);  // gain
   
   String label = _label;
   //float freq = _freq;
   //float gain = _gain;
    
     if (label == "Row 1"){
	
   row1.trigger();
  minim1.stop();
   
    } else if (label == "Row 2"){
   row2.trigger();
   minim2.stop();
   
    } else if (label == "Row 3"){
   row3.trigger();
  minim3.stop();
  
    } else if (label == "Row 4"){
   row4.trigger();
  minim4.stop();
  
    } else if (label == "Row 5"){
   row5.trigger();
  minim5.stop();
  
    } else if (label == "Row 6"){
   row6.trigger();
 minim6.stop();
 
    }

    
  }
   
  /* void stop(String _label){
     
	String label = _label;
if (label == "Row 1"){
	
   minim1.stop();
  
   
    } else if (label == "Row 2"){
   minim2.stop();
   
    } else if (label == "Row 3"){
   minim3.stop();
  
    } else if (label == "Row 4"){
   minim4.stop();
  
    } else if (label == "Row 5"){
   minim5.stop();
   
    } else if (label == "Row 6"){
   minim6.stop();
   
    }
     minim1.stop();
     minim2.stop();
     minim3.stop();
	 minim4.stop();
	  minim5.stop();
	   minim6.stop();
    
     
  // super.stop();
  }
  */
}
 

the other sequencer code that adds and remembers the notes, their position etc, that may be the source of the problem...
Code:

public void add(int _x, int _y) {
    
    //  this just adds points to the arrays.  
    theX[place] = _x;
    theY[place] = _y;
    
    played[place] = false;  // this is for playing of the notes.  Set it to false by default

    place++;  // this advances the place by one each time add() runs

    if (place == theX.length-1) {  //  if place (and, by extention, the number of points) is the size of the array..

	theX = expand(theX, theX.length+25);  // ..expand the arrays by 25
	theY = expand(theY, theY.length+25);
	played = expand(played, played.length+25);

    }

  }

  public boolean exists(int locX, int locY) {  // Check to see if the points exist.  Called when mouse is pressed

    exist = false;

    for (int i=0; i<theX.length; i++) {

	if ((theX[i] > locX-4)&&(theX[i] < locX+4)&&(theY[i] > locY-4)&&(theY[i] < locY+4)) {
	  exist = true;
	  cue=i;  // if the point does exist, set the point to the cue.  used for removing
	} 
    } 
    return exist;
  }


  public void notes(int marker) {  //  checks the placement of the tempo marker, and plays the notes that are there

    if (marker == 100) reset();  // if the marker is at the end of the box, call the reset() method

    for (int i=0; i<theY.length; i++) {
	if ((theX[i]<marker+4)&&(theX[i]>marker-4)) { // if the marker is roughly (because the marker doesn't always land on the point) equal to a point
	  play(i, theY[i]);  // play the note

	}   
    }
  }
 

many many thanks!