diff --git a/lib/ntk b/lib/ntk
index 02768c4..8ee564b 160000
--- a/lib/ntk
+++ b/lib/ntk
@@ -1 +1 @@
-Subproject commit 02768c459a81592abaa50c6095b3a60b1049b4fc
+Subproject commit 8ee564bef320b3561e204d17c1aa054311b2ce47
diff --git a/mixer/src/Controller_Module.C b/mixer/src/Controller_Module.C
index f3b79a4..a6ce1b8 100644
--- a/mixer/src/Controller_Module.C
+++ b/mixer/src/Controller_Module.C
@@ -45,6 +45,8 @@
 // needed for mixer->endpoint
 #include "Mixer.H"
 
+bool Controller_Module::_learn_mode = false;
+
 
 
 Controller_Module::Controller_Module ( bool is_default ) : Module( is_default, 50, 100, name() )
@@ -517,6 +519,19 @@ Controller_Module::menu ( void )
     return m;
 }
 
+void
+Controller_Module::draw ( void )
+{
+    draw_box(x(),y(),w(),h());
+    Fl_Group::draw();
+    
+
+    if ( learn_mode() )
+    {
+        fl_rectf( x(),y(),w(),h(), fl_color_add_alpha( FL_MAGENTA, 50 ) );
+    }
+}
+
 int
 Controller_Module::handle ( int m )
 {
@@ -525,7 +540,24 @@ Controller_Module::handle ( int m )
     {
         case FL_PUSH:
         {
-            if ( test_press( FL_BUTTON3 ) )
+            if ( learn_mode() )
+            {
+                tooltip( "Now learning control. Move the desired control on your controller" );
+
+                //connect_to( &module->control_input[port] );
+                Port *p = control_output[0].connected_port();
+                
+                if ( p )
+                {
+                    DMESSAGE( "Will learn %s", p->osc_path() );
+
+                    mixer->osc_endpoint->learn( p->osc_path() );
+                }
+
+                return 1;
+            }
+
+            if ( Fl::event_button3() )
             {
                 /* context menu */
                 if ( type() != SPATIALIZATION )
diff --git a/mixer/src/Controller_Module.H b/mixer/src/Controller_Module.H
index 9196de3..ee2efb0 100644
--- a/mixer/src/Controller_Module.H
+++ b/mixer/src/Controller_Module.H
@@ -40,11 +40,13 @@ class Controller_Module : public Module
     static void menu_cb ( Fl_Widget *w, void *v );
     void menu_cb ( const Fl_Menu_ *m );
 
-    char *_osc_path;
-    char *_osc_path_cv;
-
 public:
 
+    static bool _learn_mode;
+
+    static bool learn_mode ( void ) { return _learn_mode; }
+    static void learn_mode ( bool b ) { _learn_mode = b; }
+
     enum Mode { GUI, CV, OSC, MIDI };
 
     enum Type { KNOB,
@@ -88,11 +90,7 @@ public:
 
     void process ( nframes_t nframes );
 
-    void draw ( void )
-        {
-            draw_box(x(),y(),w(),h());
-            Fl_Group::draw();
-        }
+    void draw ( void );
 
     int handle ( int m );
 
diff --git a/mixer/src/Mixer.C b/mixer/src/Mixer.C
index bb57f0b..74924d2 100644
--- a/mixer/src/Mixer.C
+++ b/mixer/src/Mixer.C
@@ -48,6 +48,8 @@
 #include "OSC/Endpoint.H"
 #include <lo/lo.h>
 
+#include "Controller_Module.H"
+
 extern char *user_config_dir;
 extern char *instance_name;
 
@@ -55,11 +57,25 @@ extern char *instance_name;
 #include "string_util.h"
 
 #include "NSM.H"
+#include <FL/Fl_Tooltip.H>
 
 extern NSM_Client *nsm;
 
 
 
+static void
+mixer_show_tooltip ( const char *s )
+{
+    mixer->status( s );
+}
+
+static void
+mixer_hide_tooltip ( void )
+{
+    mixer->status( 0 );
+}
+
+
 /************************/
 /* OSC Message Handlers */
 /************************/
@@ -262,6 +278,18 @@ void Mixer::cb_menu(Fl_Widget* o) {
                 fl_alert( "%s", "Failed to import strip!" );
         }
     }
+    else if ( ! strcmp( picked, "&Mixer/Start Learning" ) )
+    {
+        Controller_Module::learn_mode( true );
+        status( "Now in learn mode. Click on a highlighted control to teach it something." );
+        redraw();
+    }
+    else if ( ! strcmp( picked, "&Mixer/Stop Learning" ) )
+    {
+        Controller_Module::learn_mode( false );
+        status( "Learning complete" );
+        redraw();
+    }
     else if ( !strcmp( picked, "&Mixer/Paste" ) )
     {
         Fl::paste(*this);
@@ -286,18 +314,6 @@ void Mixer::cb_menu(Fl_Widget* o) {
     {
         fl_theme_chooser();
     }
-    else if (! strcmp( picked, "&Options/&Display/Update Frequency/15 Hz" ) )
-    {
-        update_frequency( 15.0f );
-    }
-    else if (! strcmp( picked, "&Options/&Display/Update Frequency/30 Hz" ) )
-    {
-        update_frequency( 30.0f );
-    }
-    else if (! strcmp( picked, "&Options/&Display/Update Frequency/60 Hz" ) )
-    {
-        update_frequency( 60.0f );
-    }
     else if ( ! strcmp( picked, "&Help/&About" ) )
     {
         About_Dialog ab( PIXMAP_PATH "/non-mixer/icon-256x256.png" );
@@ -422,7 +438,7 @@ Mixer::load_project_settings ( void )
 {
     reset_project_settings();
 
-//    if ( Project::open() )
+    if ( Project::open() )
 	((Fl_Menu_Settings*)menubar)->load( menubar->find_item( "&Project/Se&ttings" ), "options" );
 
     update_menu();
@@ -434,6 +450,15 @@ Mixer::Mixer ( int X, int Y, int W, int H, const char *L ) :
     Loggable::dirty_callback( &Mixer::handle_dirty, this );
     Loggable::progress_callback( progress_cb, NULL );
 
+    Fl_Tooltip::hoverdelay( 0 );
+    Fl_Tooltip::delay( 0 );
+    fl_show_tooltip = mixer_show_tooltip;
+    fl_hide_tooltip = mixer_hide_tooltip;
+    /* Fl_Tooltip::size( 11 ); */
+    /* Fl_Tooltip::textcolor( FL_FOREGROUND_COLOR ); */
+    /* Fl_Tooltip::color( fl_color_add_alpha( FL_DARK1, 0 ) ); */
+//    fl_tooltip_docked = 1;
+
     _rows = 1;
     box( FL_FLAT_BOX );
     labelsize( 96 );
@@ -452,6 +477,8 @@ Mixer::Mixer ( int X, int Y, int W, int H, const char *L ) :
             o->add( "&Mixer/Add &N Strips" );
             o->add( "&Mixer/&Import Strip" );
             o->add( "&Mixer/Paste", FL_CTRL + 'v', 0, 0 );
+            o->add( "&Mixer/Start Learning", FL_F + 9, 0, 0 );
+            o->add( "&Mixer/Stop Learning", FL_F + 10, 0, 0 );
             o->add( "&View/&Theme", 0, 0, 0 );
             /* o->add( "&Options/&Display/Update Frequency/60 Hz", 0, 0, 0, FL_MENU_RADIO ); */
             /* o->add( "&Options/&Display/Update Frequency/30 Hz", 0, 0, 0, FL_MENU_RADIO); */
@@ -483,18 +510,17 @@ Mixer::Mixer ( int X, int Y, int W, int H, const char *L ) :
         } // Fl_Blink_Button* sm_blinker
         o->end();
     }
-    { Fl_Scroll *o = scroll = new Fl_Scroll( X, Y + 24, W, H - 24 );
+    { Fl_Scroll *o = scroll = new Fl_Scroll( X, Y + 24, W, H - ( 24 + 18 ) );
         o->box( FL_FLAT_BOX );
 //        o->type( Fl_Scroll::HORIZONTAL_ALWAYS );
 //        o->box( Fl_Scroll::BOTH );
         {
-            Fl_Flowpack *o = mixer_strips = new Fl_Flowpack( X, Y + 24, W, H - 18 - 24 );
+            Fl_Flowpack *o = mixer_strips = new Fl_Flowpack( X, Y + 24, W, H - ( 18*2 + 24 ));
 //            label( "Non-Mixer" );
             align( (Fl_Align)(FL_ALIGN_CENTER | FL_ALIGN_INSIDE) );
-            o->flow( false );
             o->box( FL_FLAT_BOX );
             o->type( Fl_Pack::HORIZONTAL );
-             o->hspacing( 2 );
+            o->hspacing( 2 );
             o->vspacing( 2 );
             o->end();
             Fl_Group::current()->resizable( o );
@@ -502,7 +528,12 @@ Mixer::Mixer ( int X, int Y, int W, int H, const char *L ) :
         o->end();
         Fl_Group::current()->resizable( o );
     }
-
+    { Fl_Box *o = _status = new Fl_Box( X, Y + H - 18, W, 18 );
+        o->align( FL_ALIGN_LEFT | FL_ALIGN_INSIDE );
+        o->labelsize( 10 );
+        o->box( FL_FLAT_BOX );
+        o->color( FL_DARK1 );
+    }
     end();
 
     update_frequency( 15 );
@@ -512,6 +543,45 @@ Mixer::Mixer ( int X, int Y, int W, int H, const char *L ) :
     load_options();
 }
 
+/* translate message addressed to strip number to appropriate strip */
+int
+Mixer::osc_strip_by_number ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
+{
+    int n;
+    char *rem;
+    
+    OSC::Endpoint *ep = (OSC::Endpoint*)user_data;
+    
+    DMESSAGE( "%s", path );
+
+    if ( 2 != sscanf( path, "/strip#/%d/%a[^\n]", &n, &rem ) )
+        return -1;
+
+    DMESSAGE( "%s", rem );
+
+    Mixer_Strip *o = mixer->track_by_number( n );
+
+    if ( ! o )
+    {
+        DMESSAGE( "No strip by number %i", n );
+        return 0;
+    }
+
+    char *new_path;
+    
+    asprintf( &new_path, "/strip/%s/%s", o->name(), rem );
+
+    free( rem );
+
+         DMESSAGE( "Sending %s", new_path );
+
+    lo_send_message( ep->address(), new_path, msg );
+
+    free( new_path );
+
+    return 0;
+}
+
 int
 Mixer::init_osc ( const char *osc_port )
 {
@@ -569,6 +639,11 @@ void Mixer::add ( Mixer_Strip *ms )
    ms->take_focus();
 }
 
+int
+Mixer::find_strip ( const Mixer_Strip *m ) const
+{
+    return mixer_strips->find( m );
+}
 
 void
 Mixer::quit ( void )
@@ -584,8 +659,6 @@ Mixer::insert ( Mixer_Strip *ms, Mixer_Strip *before )
 {
 //    mixer_strips->remove( ms );
     mixer_strips->insert( *ms, before );
-
-//    scroll->redraw();
 }
 void
 Mixer::insert ( Mixer_Strip *ms, int i )
@@ -646,23 +719,26 @@ Mixer::rows ( int ideal_rows )
 {
     int sh;
 
-    int actual_rows;
+    int actual_rows = 1;
 
-    /* calculate how many rows will actually fit */
-    int can_fit = scroll->h() / ( Mixer_Strip::min_h() );
-    
-    actual_rows = can_fit > 0 ? can_fit : 1;
-    
-    if ( actual_rows > ideal_rows )
-        actual_rows = ideal_rows;
-    
-    /* calculate strip height */
-    if ( actual_rows > 1 )
+    if ( ideal_rows > 1 )
     {
-        sh = ( scroll->h() / (float)actual_rows ) - ( mixer_strips->vspacing() * ( actual_rows - 2 ));
-        mixer_strips->flow(true);
+        sh = (scroll->h() / ideal_rows ) - (mixer_strips->vspacing() * (ideal_rows - 1));
+        mixer_strips->flow( true );
+
+	if ( sh < Mixer_Strip::min_h() )
+	  {
+	    int can_fit = ( scroll->h() - 18 ) / Mixer_Strip::min_h();
+
+            actual_rows = can_fit > 0 ? can_fit : 1;
+	  }
+        else
+            actual_rows = ideal_rows;
     }
     else
+        actual_rows = 1;
+
+    if ( 1 == actual_rows )
     {
         sh = (scroll->h() - 18);
         mixer_strips->flow(false);
@@ -707,6 +783,15 @@ Mixer::track_by_name ( const char *name )
 
     return NULL;
 }
+/** retrun a pointer to the track named /name/, or NULL if no track is named /name/ */
+Mixer_Strip *
+Mixer::track_by_number ( int n )
+{
+    if ( n < 0 || n >= mixer_strips->children() )
+        return NULL;
+    
+    return (Mixer_Strip*)mixer_strips->child(n);
+}
 
 /** return a malloc'd string representing a unique name for a new track */
 char *
diff --git a/mixer/src/Mixer.H b/mixer/src/Mixer.H
index e111fbb..7e20e0c 100644
--- a/mixer/src/Mixer.H
+++ b/mixer/src/Mixer.H
@@ -52,6 +52,7 @@ private:
     Fl_Color system_colors[3];
 
     Mixer_Strip* track_by_name ( const char *name );
+    Mixer_Strip* track_by_number ( int n );
 
     void snapshot ( void );
     static void snapshot ( void *v ) { ((Mixer*)v)->snapshot(); }
@@ -63,6 +64,7 @@ private:
     Fl_Scroll *scroll;
     Fl_Pack *pack;
     Fl_Box *project_name;
+    Fl_Box *_status;
 
     Fl_Flowpack *mixer_strips;
 
@@ -75,6 +77,7 @@ private:
     static void handle_dirty ( int, void *v );
 
     static int osc_non_hello ( const char *, const char *, lo_arg **, int , lo_message msg, void * );
+    static int osc_strip_by_number ( const char *, const char *, lo_arg **, int , lo_message msg, void * );
 
     static void update_cb ( void * );
     void update_cb ( void );
@@ -83,6 +86,11 @@ public:
 
     void update_frequency ( float f );
     
+    void status ( const char *s ) { 
+        if ( s ) _status->copy_label( s );
+        else _status->label(0); 
+        _status->redraw(); }
+
     virtual int handle ( int m );
 
     char * get_unique_track_name ( const char *name );
@@ -102,6 +110,7 @@ public:
     void insert ( Mixer_Strip *ms, int i );
     bool contains ( Mixer_Strip *ms );
     Mixer_Strip * event_inside ( void );
+    int find_strip ( const Mixer_Strip *m ) const;
 
     bool save ( void );
     void quit ( void );
diff --git a/mixer/src/Mixer_Strip.C b/mixer/src/Mixer_Strip.C
index 1128a6c..cf1c6c2 100644
--- a/mixer/src/Mixer_Strip.C
+++ b/mixer/src/Mixer_Strip.C
@@ -389,6 +389,7 @@ Mixer_Strip::init ( )
          
          { Fl_Box *o = color_box = new Fl_Box( 0,0, 25, 10 );
              o->box(FL_FLAT_BOX);
+             o->tooltip( "Drag and drop to move strip" );
          }
 
         { Fl_Pack *o = new Fl_Pack( 2, 2, 114, 100 );
@@ -727,8 +728,9 @@ Mixer_Strip::handle ( int m )
         }
         case FL_PUSH:
             if ( Fl::event_button1() && Fl::event_inside( color_box ) )
-            {
-            }
+                dragging = this;
+            else
+                dragging = NULL;
 
             _button = Fl::event_button();
           
@@ -737,18 +739,17 @@ Mixer_Strip::handle ( int m )
             break;
         
         case FL_DRAG:
-            if ( Fl::event_is_click() )
-                return 1;
-            
-            dragging = this;
+            return 1;
             break;
         case FL_RELEASE:
-            if ( dragging == this )
+            if ( dragging == this && ! Fl::event_is_click() )
             {
                 mixer->insert( this, mixer->event_inside() );
                 dragging = NULL;
                 return 1;
             }
+            
+            dragging = NULL;
    
             int b = _button;
             _button = 0;
@@ -769,6 +770,11 @@ Mixer_Strip::handle ( int m )
     return 0;
 }
 
+int
+Mixer_Strip::number ( void ) const
+{
+    return mixer->find_strip( this );
+}
 
 /************/
 /* Commands */
diff --git a/mixer/src/Mixer_Strip.H b/mixer/src/Mixer_Strip.H
index 704cb20..03ece52 100644
--- a/mixer/src/Mixer_Strip.H
+++ b/mixer/src/Mixer_Strip.H
@@ -141,6 +141,7 @@ protected:
 
 public:
 
+    int number ( void ) const;
     static bool import_strip ( const char *filename );
 
     void command_move_left ( void );
diff --git a/mixer/src/Module.C b/mixer/src/Module.C
index 02545e7..e38f2f5 100644
--- a/mixer/src/Module.C
+++ b/mixer/src/Module.C
@@ -226,12 +226,42 @@ Module::paste_before ( void )
 
 
 
+void
+Module::Port::send_feedback ( void )
+{
+
+    if ( _scaled_signal )
+    {
+        /* send feedback for by_name signal */
+        mixer->osc_endpoint->send_feedback( _scaled_signal->path(), control_value() );
+        
+/* send feedback for by number signal */
+        {        
+        int n = _module->chain()->strip()->number();
+
+        char *s = strdup( _scaled_signal->path() );
+
+        char *suffix = index( s, '/' );
+        suffix = index( suffix, '/' );
+        suffix = index( suffix, '/' );
+
+        char *path;
+        asprintf( &path, "/strip#/%i%s", suffix );
+        
+        mixer->osc_endpoint->send_feedback( path, control_value() );
+       
+        }
+     }
+
+}
 
 void
 Module::handle_control_changed ( Port *p )
 {
     if ( _editor )
         _editor->handle_control_changed ( p );
+
+    p->send_feedback();
 }
 
 bool
diff --git a/mixer/src/Module.H b/mixer/src/Module.H
index 8a04959..0f9248e 100644
--- a/mixer/src/Module.H
+++ b/mixer/src/Module.H
@@ -239,6 +239,8 @@ public:
                 update_connected_port_buffer();
             }
 
+        void send_feedback ( void );
+
         void disconnect ( void )
             {
                 if ( _connected && _connected != (void*)0x01 )
diff --git a/nonlib/OSC/Endpoint.C b/nonlib/OSC/Endpoint.C
index 2bf499e..a3817c2 100644
--- a/nonlib/OSC/Endpoint.C
+++ b/nonlib/OSC/Endpoint.C
@@ -180,6 +180,7 @@ namespace OSC
 
     Endpoint::Endpoint ( )
     {  
+        _learning_path = NULL;
         _peer_signal_notification_callback = 0;
         _peer_signal_notification_userdata = 0;
         _peer_scan_complete_callback = 0;
@@ -196,6 +197,10 @@ namespace OSC
 
         _server = lo_server_new_with_proto( port, proto, error_handler );
 
+        char *url = lo_server_get_url( _server );
+        _addr = lo_address_new_from_url( url );
+        free( url );
+        
         if ( ! _server )
         {
             WARNING( "Error creating OSC server" );
@@ -210,8 +215,8 @@ namespace OSC
         add_method( "/signal/created", "ssifff", &Endpoint::osc_sig_created, this, "" );
         add_method( "/signal/change", "iif", &Endpoint::osc_sig_handler, this, "" );
         add_method( "/signal/list", NULL, &Endpoint::osc_signal_lister, this, "" );
-        add_method( NULL, "", &Endpoint::osc_generic, this, "" );
         add_method( "/reply", NULL, &Endpoint::osc_reply, this, "" );
+        add_method( NULL, NULL, &Endpoint::osc_generic, this, "" );
 
         return 0;
     }
@@ -694,16 +699,46 @@ namespace OSC
         return 0;
     }
 
+    void
+    Endpoint::add_translation ( const char *a, const char *b )
+    {
+        _translations[a].path = b;
+    }
+
     int
     Endpoint::osc_generic ( const char *path, const char *types, lo_arg **argv, int argc, lo_message msg, void *user_data )
     {
 //        OSC_DMSG();
+        Endpoint *ep = (Endpoint*)user_data;
+
+        if ( ep->_learning_path )
+        {
+            ep->add_translation( path, ep->_learning_path );
+
+            DMESSAGE( "Learned translation \"%s\" -> \"%s\"", path, ep->_learning_path );
+            
+            free(ep->_learning_path);
+            ep->_learning_path = NULL;
+            
+            return 0;
+        }
+
+        {
+            std::map<std::string,TranslationDestination>::const_iterator i = ep->_translations.find( path );
+            
+            if ( i != ep->_translations.end() )
+            {
+                const char *dpath = i->second.path.c_str();
+
+                DMESSAGE( "Translating message \"%s\" to \"%s\"", path, dpath );
+                lo_send_message(ep->_addr, dpath, msg );
+                return 0;
+            }
+        }
 
         if ( argc || path[ strlen(path) - 1 ] != '/' )
             return -1;
 
-        Endpoint *ep = (Endpoint*)user_data;
-
         for ( std::list<Method*>::const_iterator i = ep->_methods.begin(); i != ep->_methods.end(); ++i )
         {
             if ( ! (*i)->path() )
@@ -1212,6 +1247,51 @@ namespace OSC
         _signals.remove( o );
     }
 
+    /* prepare to learn a translation for /path/. The next unhandled message to come through will be mapped to /path/ */
+    void
+    Endpoint::learn ( const char *path )
+    {
+        if ( _learning_path )
+            free( _learning_path );
+
+        _learning_path = NULL;
+
+        if ( path )
+            _learning_path = strdup( path );
+    }
+
+    /** if there's a translation with a destination of 'path', then send feedback for it */
+    void
+    Endpoint::send_feedback ( const char *path, float v )
+    {
+        for ( std::map<std::string,TranslationDestination>::iterator i = _translations.begin();
+              i != _translations.end();
+              i++ )
+        {
+            if ( ! strcmp( i->second.path.c_str(), path ) )
+            {
+                /* found it */
+                if ( i->second.current_value != v )
+                {
+                    const char *spath = i->first.c_str();
+
+                    DMESSAGE( "Sending feedback to \"%s\": %f", spath, v );
+
+                    /* send to all peers */
+                    for ( std::list<Peer*>::iterator p = _peers.begin(); 
+                          p != _peers.end();
+                          ++p )
+                    {
+                        send( (*p)->addr, spath, v );
+                    }
+
+                    i->second.current_value = v;
+                }
+
+            }
+        }
+    }
+
     Peer *   
     Endpoint::add_peer ( const char *name, const char *url )
     {
diff --git a/nonlib/OSC/Endpoint.H b/nonlib/OSC/Endpoint.H
index ce5b082..d0e5d18 100644
--- a/nonlib/OSC/Endpoint.H
+++ b/nonlib/OSC/Endpoint.H
@@ -22,8 +22,10 @@
 #include <lo/lo.h>
 #include "Thread.H"
 #include <list>
+#include <string>
 #include <stdlib.h>
 #include <string.h>
+#include <map>
 
 namespace OSC
 {
@@ -244,11 +246,23 @@ namespace OSC
 
 //        lo_server_thread _st;
         lo_server _server;
-
+        lo_address _addr;
+        
         std::list<Peer*> _peers;
         std::list<Signal*> _signals;
         std::list<Method*> _methods;
 
+        char *_learning_path;
+
+        class TranslationDestination {
+
+        public:
+            std::string path;
+            float current_value;
+        };
+
+        std::map<std::string,TranslationDestination> _translations;
+
         void (*_peer_scan_complete_callback)(void*);
         void *_peer_scan_complete_userdata;
 
@@ -296,6 +310,16 @@ namespace OSC
 
     public:
         
+        void send_feedback ( const char *path, float v );
+        void learn ( const char *path );
+
+        lo_address address ( void )
+            {
+                return _addr;
+            }
+
+        void add_translation ( const char *a, const char *b );
+        
         void peer_signal_notification_callback ( void (*cb)(OSC::Signal *, OSC::Signal::State, void*), void *userdata )
             {
                 _peer_signal_notification_callback = cb;