1 files changed, 8 insertions, 0 deletions
diff --git a/UI.h b/UI.h
index 3041566..f507d2e 100644
--- a/UI.h
+++ b/UI.h
@@ -2,6 +2,8 @@
 
 #include <chrono>
 
+#include <boost/signals2.hpp>
+
 class UI
 {
 public:
@@ -11,6 +13,12 @@ public:
 
   void draw();
 
+  // signals
+  boost::signals2::signal<void()> bpm_plus;
+  boost::signals2::signal<void()> bpm_minus;
+  boost::signals2::signal<void()> note_set_from_midi;
+  boost::signals2::signal<void()> mode;
+
   // slots
   void count_main_loops();
   void slot_active_sensing();