diff --git a/main.py b/main.py
index 5f0cb1b..4e6971b 100644
--- a/main.py
+++ b/main.py
@@ -133,6 +133,11 @@ class MainWindow(QMainWindow):
         self.detect_all_button.clicked.connect(self._on_detect_all_clicked)
         marker_layout.addWidget(self.detect_all_button)
 
+        self.detect_next_button = QPushButton("Detect Next Clap")
+        self.detect_next_button.setEnabled(False)
+        self.detect_next_button.clicked.connect(self._on_detect_next_clicked)
+        marker_layout.addWidget(self.detect_next_button)
+
         layout.addWidget(marker_group)
 
         # Offset + preview + export row
@@ -241,6 +246,7 @@ class MainWindow(QMainWindow):
         self.detect_all_action.setEnabled(True)
         self.detect_all_button.setEnabled(True)
         self.detect_next_action.setEnabled(True)
+        self.detect_next_button.setEnabled(True)
 
         # A loaded preview belongs to the *previous* source/offset -- drop it.
         if self._preview_temp_path and os.path.exists(self._preview_temp_path):
@@ -357,6 +363,7 @@ class MainWindow(QMainWindow):
         self.detect_all_action.setEnabled(False)
         self.detect_all_button.setEnabled(False)
         self.detect_next_action.setEnabled(False)
+        self.detect_next_button.setEnabled(False)
         self.statusBar().showMessage(label)
 
         self._detect_worker = DetectWorker(self.input_path, start_offset=start_offset, max_results=max_results)
@@ -368,6 +375,7 @@ class MainWindow(QMainWindow):
         self.detect_all_action.setEnabled(True)
         self.detect_all_button.setEnabled(True)
         self.detect_next_action.setEnabled(True)
+        self.detect_next_button.setEnabled(True)
 
         existing = set(self.source_panel.marker_strip.markers())
         existing.update(e.time_sec for e in events)
@@ -386,6 +394,7 @@ class MainWindow(QMainWindow):
         self.detect_all_action.setEnabled(True)
         self.detect_all_button.setEnabled(True)
         self.detect_next_action.setEnabled(True)
+        self.detect_next_button.setEnabled(True)
         self.statusBar().showMessage("Detection failed (see log).", 8000)
         self.log_view.appendPlainText(f"Clap detection FAILED: {message}")
 
diff --git a/player_panel.py b/player_panel.py
index b645f9d..148a0e6 100644
--- a/player_panel.py
+++ b/player_panel.py
@@ -53,7 +53,7 @@ class PlayerPanel(QWidget):
         self._slider_being_dragged = False
 
         layout = QVBoxLayout(self)
-        layout.setContentsMargins(0, 0, 0, 0)
+        layout.setContentsMargins(0, 0, 0, 8)
         layout.addWidget(self.player, stretch=1)
 
         seek_row = QHBoxLayout()
@@ -84,7 +84,7 @@ class PlayerPanel(QWidget):
         transport = QHBoxLayout()
         transport.addStretch(1)
 
-        self.prev_frame_button = QPushButton("⏮ Frame (,)")
+        self.prev_frame_button = QPushButton("⏮ Frame")
         self.prev_frame_button.clicked.connect(lambda: self.step_frame(-1))
         transport.addWidget(self.prev_frame_button)
 
@@ -92,7 +92,7 @@ class PlayerPanel(QWidget):
         self.play_button.clicked.connect(self.toggle_play)
         transport.addWidget(self.play_button)
 
-        self.next_frame_button = QPushButton("Frame ⏭ (.)")
+        self.next_frame_button = QPushButton("Frame ⏭")
         self.next_frame_button.clicked.connect(lambda: self.step_frame(1))
         transport.addWidget(self.next_frame_button)
 
diff --git a/scripts/smoke_test_interactions.py b/scripts/smoke_test_interactions.py
index f57325b..208663e 100644
--- a/scripts/smoke_test_interactions.py
+++ b/scripts/smoke_test_interactions.py
@@ -30,17 +30,19 @@ def main():
     win.show()
     qapp.processEvents()
 
-    # -- Tools menu has the clap detection actions, AND Detect All Claps is
-    # also back as a button in the Sync markers panel (both should reflect
-    # the same enabled state, kept in sync explicitly since they're two
+    # -- Tools menu has the clap detection actions, AND both Detect All Claps
+    # and Detect Next Clap are also buttons in the Sync markers panel (each
+    # kept in sync with its menu action's enabled state, since they're two
     # separate widgets).
     menu_titles = [a.text() for a in win.menuBar().actions()]
     assert "&Tools" in menu_titles, f"expected a Tools menu, got {menu_titles}"
     assert win.detect_all_action.text() == "Detect All Claps"
     assert win.detect_next_action.text() == "Detect Next Clap"
     assert win.detect_all_button.text() == "Detect All Claps"
+    assert win.detect_next_button.text() == "Detect Next Clap"
     assert win.detect_all_action.isEnabled() == win.detect_all_button.isEnabled()
-    print("PASS: Tools menu has plain-labeled clap detection actions, button back in sync markers panel")
+    assert win.detect_next_action.isEnabled() == win.detect_next_button.isEnabled()
+    print("PASS: Tools menu has plain-labeled clap detection actions, both buttons back in sync markers panel")
 
     # -- Load via drag-and-drop simulation on the player widget
     mime = QMimeData()