    //=============================================================================
    //  MuseScore
    //  Music Composition & Notation
    //
    //  Copyright (C) 2009-2011 Werner Schweer
    //
    //  This program is free software; you can redistribute it and/or modify
    //  it under the terms of the GNU General Public License version 2
    //  as published by the Free Software Foundation and appearing in
    //  the file LICENCE.GPL
    //=============================================================================

    #ifndef __VELO_H__
    #define __VELO_H__

    /**
     \file
     Definition of classes VeloList.
    */

    namespace Ms {

    //---------------------------------------------------------
    ///   VeloEvent
    ///   item in VeloList
    //---------------------------------------------------------

    enum class VeloType : char { FIX, RAMP };

    struct VeloEvent {
          VeloType type;
          char val;
          VeloEvent() {}
          VeloEvent(VeloType t, char v) : type(t), val(v) {}
          };

    //---------------------------------------------------------
    ///  VeloList
    ///  List of note velocity changes
    //---------------------------------------------------------

    class VeloList : public QMap<int, VeloEvent> {
       public:
          VeloList() {}
          int velo(int tick) const;
          int nextVelo(int tick) const;
          void setVelo(int tick, VeloEvent velo);
          void setVelo(int tick, int velocity);
          };

    }     // namespace Ms
    #endif

↑ V730 Not all members of a class are initialized inside the constructor. Consider inspecting: type, val.