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diff --git a/muse_qt4_evolution/muse/midieventbase.h b/muse_qt4_evolution/muse/midieventbase.h
new file mode 100644
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+++ b/muse_qt4_evolution/muse/midieventbase.h
@@ -0,0 +1,76 @@
+//=============================================================================
+//  MusE
+//  Linux Music Editor
+//  $Id:$
+//
+//  Copyright (C) 2002-2006 by Werner Schweer and others
+//
+//  This program is free software; you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License version 2.
+//
+//  This program 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 program; if not, write to the Free Software
+//  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//=============================================================================
+
+#ifndef __MIDI_EVENT_BASE_H__
+#define __MIDI_EVENT_BASE_H__
+
+#include "eventbase.h"
+
+//---------------------------------------------------------
+//   MidiEventBase
+//---------------------------------------------------------
+
+class MidiEventBase : public EventBase {
+      int a, b, c;            // pitch, velo-on, velo-off
+      EvData edata;
+
+      virtual EventBase* clone() const { return new MidiEventBase(*this); }
+
+   public:
+      MidiEventBase(EventType t);
+      virtual ~MidiEventBase() {}
+
+      virtual bool isNote() const                   { return type() == Note; }
+      virtual bool isNoteOff() const;
+      virtual bool isNoteOff(const Event&) const;
+      virtual int pitch() const                     { return a;      }
+      virtual int program() const                   { return a;      }
+      virtual int cntrl() const                     { return a;      }
+      virtual int dataA() const                     { return a;      }
+      virtual void setA(int val)                    { a = val;       }
+      virtual void setPitch(int v)                  { a = v;         }
+
+      virtual int cntrlVal() const                  { return b;      }
+      virtual int dataB() const                     { return b;      }
+      virtual int velo() const                      { return b;      }
+      virtual void setB(int val)                    { b = val;       }
+      virtual void setVelo(int v)                   { b = v;         }
+
+      virtual int veloOff() const                   { return c;      }
+      virtual int dataC() const                     { return c;      }
+      virtual void setC(int val)                    { c = val;       }
+      virtual void setVeloOff(int v)                { c = v;         }
+
+      virtual const unsigned char* data() const     { return edata.data;  }
+      virtual int dataLen() const                   { return edata.dataLen; }
+      virtual void setData(const unsigned char* data, int len) { edata.setData(data, len); }
+      virtual const EvData eventData() const        { return edata; }
+
+      virtual void dump(int n = 0) const;
+      virtual void read(QDomNode);
+      virtual void write(Xml&, const Pos& offset) const;
+      virtual EventBase* mid(unsigned, unsigned);
+
+      virtual bool operator==(const EventBase&) const;
+      virtual bool operator==(const MidiEventBase&) const;
+      };
+
+#endif
+