diff --git a/src/main.py b/src/main.py
index ddaef68..b054c6e 100644
--- a/src/main.py
+++ b/src/main.py
@@ -7,12 +7,12 @@ if __name__ == "__main__":
     print("Loading project...")
     test_project = Project(channels=[
         ProjectChannel(chunks=[
-            AudioChannelChunk(*librosa.load("120 bpm amen break.mp3"), position=0),
-            AudioChannelChunk(*librosa.load("120 bpm amen break.mp3"), position=1),
-            AudioChannelChunk(*librosa.load("120 bpm amen break.mp3"), position=2)
+            AudioChannelChunk(*librosa.load("120 bpm amen break.mp3", mono=False), position=0, name="120 bpm amen break.mp3"),
+            AudioChannelChunk(*librosa.load("120 bpm amen break.mp3", mono=False), position=1, name="120 bpm amen break.mp3"),
+            AudioChannelChunk(*librosa.load("120 bpm amen break.mp3", mono=False), position=2, name="120 bpm amen break.mp3")
         ], name="drums"),
         ProjectChannel(chunks=[
-            
+            AudioChannelChunk(*librosa.load("piano chords - Bmin 120BPM.wav", mono=False), name="piano chords - Bmin 120BPM.wav")
         ], name="piano")
     ])#.from_file("test_project.tdp")
     
diff --git a/src/piano chords - Bmin 120BPM.wav b/src/piano chords - Bmin 120BPM.wav
new file mode 100644
index 0000000..c87ddcb
Binary files /dev/null and b/src/piano chords - Bmin 120BPM.wav differ
diff --git a/src/ui/app.py b/src/ui/app.py
index cbfd6df..7127e0c 100644
--- a/src/ui/app.py
+++ b/src/ui/app.py
@@ -9,8 +9,6 @@ from ui.widgets.project_settings import ProjectSettings
 class AppUI(App):    
     CSS_PATH = "../assets/style.tcss"
     
-    theme = "atom-one-dark"
-    
     def __init__(self, project):
         super().__init__()
         self.zoom_level = 0.05
diff --git a/src/ui/widgets/chunk_types/audio.py b/src/ui/widgets/chunk_types/audio.py
index c20549a..7064a2d 100644
--- a/src/ui/widgets/chunk_types/audio.py
+++ b/src/ui/widgets/chunk_types/audio.py
@@ -14,7 +14,7 @@ from ui.widgets.chunk_types.chunk import Chunk
 class AudioChunk(Chunk):
     DEFAULT_CSS = """
     AudioChunk {
-        border: tab $accent;
+        border: tab $secondary;
         PlotWidget {
             height: 1fr;
 
@@ -51,7 +51,7 @@ class AudioChunk(Chunk):
     def on_mount(self):
         for plot in self.query(PlotWidget):
             plot: PlotWidget = plot # just for type checking
-            
+
             plot.margin_top = 0
             plot.margin_left = 0
             plot.margin_bottom = 0
@@ -91,7 +91,7 @@ class AudioChunk(Chunk):
                     x,
                     y,
                     1.0,
-                    bar_style=self.app.theme_variables["warning"],
+                    bar_style=self.app.theme_variables["secondary"],
                     hires_mode=HiResMode.BRAILLE
                 )
                 
@@ -114,8 +114,6 @@ class AudioChunk(Chunk):
                     samples.append(self.audio[channel, sample])"""
                     
                 yield PlotWidget(allow_pan_and_zoom=False, id=f"channel-{channel}")
-                    
-                #yield Sparkline(data=samples)
                 
                 
         else:
@@ -125,6 +123,4 @@ class AudioChunk(Chunk):
             for sample in range(0, self.num_samples, int(self.sample_rate*0.1)):
                 samples.append(self.audio[sample])"""
                 
-            yield PlotWidget(allow_pan_and_zoom=False)
-
-            #yield Sparkline(data=samples)
\ No newline at end of file
+            yield PlotWidget(allow_pan_and_zoom=False)
\ No newline at end of file
diff --git a/src/ui/widgets/timeline.py b/src/ui/widgets/timeline.py
index 7c99909..db42d29 100644
--- a/src/ui/widgets/timeline.py
+++ b/src/ui/widgets/timeline.py
@@ -80,6 +80,11 @@ class Timeline(Vertical):
         for bar_line in self.query(Rule):
             if not isinstance(bar_line, PlayHead):
                 bar_line.offset = (self.bar_offset * bar_line.index, 0)
+                
+                if self.app.zoom_level >= 0.09 and bar_line.has_class("beat-line"):
+                    bar_line.display = False
+                else:
+                    bar_line.display = True
     
     def compose(self) -> ComposeResult:
         
@@ -98,7 +103,7 @@ class Timeline(Vertical):
                             yield Chunk(chunk_name=chunk.name, bar_pos=chunk.position)
                         elif chunk.chunk_type == ChunkType.AUDIO:
                             yield AudioChunk(chunk.audio_data, chunk.sample_rate, chunk.name, chunk.position)
-                            
+
             for i in range(1, 17):
                 bar = None
                 if i % 4 == 0:
@@ -113,4 +118,4 @@ class Timeline(Vertical):
              
         
              
-        #yield PlayHead()
\ No newline at end of file
+        yield PlayHead()
\ No newline at end of file