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diff --git a/src/mdaPiano.h b/src/mdaPiano.h
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+/*
+  Copyright 2008-2011 David Robillard <http://drobilla.net>
+  Copyright 1999-2000 Paul Kellett (Maxim Digital Audio)
+
+  This is free software: you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License,
+  or (at your option) any later version.
+
+  This software is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this software. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __mdaPiano__
+#define __mdaPiano__
+
+#include <string.h>
+
+#include "audioeffectx.h"
+
+#define NPARAMS 12       //number of parameters
+#define NPROGS   8       //number of programs
+#define NOUTS    2       //number of outputs
+#define NVOICES 32       //max polyphony
+#define SUSTAIN 128
+#define SILENCE 0.0001f  //voice choking
+#define WAVELEN 586348   //wave data bytes
+
+class mdaPianoProgram
+{
+  friend class mdaPiano;
+public:
+	mdaPianoProgram();
+	~mdaPianoProgram() {}
+
+private:
+  float param[NPARAMS];
+  char  name[24];
+};
+
+
+struct VOICE  //voice state
+{
+  int32_t  delta;  //sample playback
+  int32_t  frac;
+  int32_t  pos;
+  int32_t  end;
+  int32_t  loop;
+
+  float env;  //envelope
+  float dec;
+
+  float f0;   //first-order LPF
+  float f1;
+  float ff;
+
+  float outl;
+  float outr;
+  int32_t  note; //remember what note triggered this
+};
+
+
+struct KGRP  //keygroup
+{
+  int32_t  root;  //MIDI root note
+  int32_t  high;  //highest note
+  int32_t  pos;
+  int32_t  end;
+  int32_t  loop;
+};
+
+class mdaPiano : public AudioEffectX
+{
+public:
+	mdaPiano(audioMasterCallback audioMaster);
+	~mdaPiano();
+
+	virtual void processReplacing(float **inputs, float **outputs, int32_t sampleframes);
+
+	virtual void setProgram(int32_t program);
+	virtual void setProgramName(char *name);
+	virtual void getProgramName(char *name);
+	virtual void setParameter(int32_t index, float value);
+	virtual float getParameter(int32_t index);
+	virtual void getParameterLabel(int32_t index, char *label);
+	virtual void getParameterDisplay(int32_t index, char *text);
+	virtual void getParameterName(int32_t index, char *text);
+	virtual void setSampleRate(float sampleRate);
+	virtual void setBlockSize(int32_t blockSize);
+  virtual void resume();
+
+	virtual bool getOutputProperties (int32_t index, LvzPinProperties* properties);
+	virtual bool getProgramNameIndexed (int32_t category, int32_t index, char* text);
+	virtual bool copyProgram (int32_t destination);
+	virtual bool getEffectName (char* name);
+	virtual bool getVendorString (char* text);
+	virtual bool getProductString (char* text);
+	virtual int32_t getVendorVersion () {return 1;}
+	virtual int32_t canDo (const char* text);
+
+  virtual int32_t getNumMidiInputChannels ()  { return 1; }
+
+  int32_t guiUpdate;
+  void guiGetDisplay(int32_t index, char *label);
+
+private:
+	int32_t processEvent(const LV2_Atom_Event* ev);
+	void update();  //my parameter update
+  void noteOn(int32_t note, int32_t velocity);
+  void fillpatch(int32_t p, const char *name, float p0, float p1, float p2, float p3, float p4,
+                 float p5, float p6, float p7, float p8, float p9, float p10,float p11);
+
+  mdaPianoProgram* programs;
+  float Fs, iFs;
+
+  ///global internal variables
+  KGRP  kgrp[16];
+  VOICE voice[NVOICES];
+  int32_t  activevoices, poly, cpos;
+  short *waves;
+  int32_t  cmax;
+  float *comb, cdep, width, trim;
+  int32_t  size, sustain;
+  float fine, random, stretch;
+  float muff, muffvel, sizevel, velsens, volume;
+};
+
+#endif