diff --git a/bin/cli_groovebox.rs b/bin/cli_groovebox.rs
index 15a9912b..e68776c9 100644
--- a/bin/cli_groovebox.rs
+++ b/bin/cli_groovebox.rs
@@ -46,24 +46,11 @@ impl GrooveboxCli {
             if self.sync {
                 jack.read().unwrap().client().register_timebase_callback(false, |state|{
                     let ::jack::contrib::TimebaseInfo { state, new_pos, nframes, mut position } = state;
+                    println!("\n\r{state:?} {new_pos} {nframes} {position:?}");
+                    position.bbt = Some(app.clock().bbt());
+                    println!("\r{:?}", position.bbt);
                     if new_pos {
                         app.clock().playhead.update_from_sample(position.frame() as f64)
-                    } else {
-                        println!("\n\r{state:?} {new_pos} {nframes} {position:?}");
-                        let pulse = app.clock().playhead.pulse.get() as i32;
-                        let ppq   = app.clock().timebase.ppq.get() as i32;
-                        let bpm   = app.clock().timebase.bpm.get();
-                        position.bbt = Some(::jack::contrib::PositionBBT {
-                            bar:  1 + (pulse / ppq) / 4,
-                            beat: 1 + (pulse / ppq) % 4,
-                            tick: (pulse % ppq),
-                            bar_start_tick: 0.,
-                            beat_type: 4.,
-                            beats_per_bar: 4.,
-                            beats_per_minute: bpm,
-                            ticks_per_beat: ppq as f64
-                        });
-                        println!("\n\r{:?}", position.bbt);
                     }
                     position
                 })?
diff --git a/rust-jack b/rust-jack
index de9a6b4e..cfd2a62e 160000
--- a/rust-jack
+++ b/rust-jack
@@ -1 +1 @@
-Subproject commit de9a6b4e46c403b08703b272b5b2ee353aa6cb53
+Subproject commit cfd2a62e959f2a0f5569a129790cfdb316570a7f
diff --git a/src/time.rs b/src/time.rs
index 5b3b8c35..0f1241c8 100644
--- a/src/time.rs
+++ b/src/time.rs
@@ -199,6 +199,23 @@ impl ClockModel {
 
         Ok(())
     }
+
+    pub fn bbt (&self) -> ::jack::contrib::PositionBBT {
+        let pulse = self.playhead.pulse.get() as i32;
+        let ppq   = self.timebase.ppq.get() as i32;
+        let bpm   = self.timebase.bpm.get();
+        let bar   = (pulse / ppq) / 4;
+        ::jack::contrib::PositionBBT {
+            bar:              1 + bar,
+            beat:             1 + (pulse / ppq) % 4,
+            tick:             (pulse % ppq),
+            bar_start_tick:   (bar * 4 * ppq) as f64,
+            beat_type:        4.,
+            beats_per_bar:    4.,
+            beats_per_minute: bpm,
+            ticks_per_beat:   ppq as f64
+        }
+    }
 }
 
 //#[cfg(test)]