diff --git a/src/play.rs b/src/play.rs
index 3d31e5d..914b702 100644
--- a/src/play.rs
+++ b/src/play.rs
@@ -11,14 +11,30 @@ fn from_string(s: String) -> String {
             reader
                 .read_to_string(&mut content)
                 .expect(format!("failed to read {}", s).as_ref());
-            content.split_whitespace().collect::<Vec<_>>().join(" ")
+            content
+                .split("\n")
+                .map(|x| x.split_whitespace().collect::<Vec<_>>().join(" "))
+                .collect::<Vec<_>>()
+                .join("\n")
         }
         Err(_) => s,
     }
 }
 
 fn parse(s: String) -> Vec<String> {
-    vec![s]
+    let mut channels = vec![];
+    let lines = s.split("\n").collect::<Vec<_>>();
+    let mut j = 0;
+    for i in 0..lines.len() {
+        while channels.len() <= j {
+            channels.push("".to_string());
+        }
+        match lines[i] {
+            "" => { j = 0; },
+            _ => channels[{ let tmp = j; j += 1; tmp }] += &(" ".to_string() + lines[i]),
+        };
+    }
+    channels.iter().map(|x| x.split_whitespace().collect::<Vec<_>>().join(" ")).collect()
 }
 
 #[cfg(test)]
@@ -41,7 +57,23 @@ mod test {
     fn test_two_channels_one_bar() {
         assert_eq!(
             super::new("src/testdata/two_channels_one_bar.txt")[0],
-            "a b c".to_string()
+            "2a 2b 2c".to_string()
+        );
+        assert_eq!(
+            super::new("src/testdata/two_channels_one_bar.txt")[1],
+            ". a5 . b5 . c5".to_string()
+        );
+    }
+
+    #[test]
+    fn test_two_channels_two_bars() {
+        assert_eq!(
+            super::new("src/testdata/two_channels_two_bars.txt")[0],
+            "a b c d e f".to_string()
+        );
+        assert_eq!(
+            super::new("src/testdata/two_channels_two_bars.txt")[1],
+            "2a 2b 2c 2d 2e 2f".to_string()
         );
     }
 }
diff --git a/src/seq.rs b/src/seq.rs
index dcfbd0a..a3a8696 100644
--- a/src/seq.rs
+++ b/src/seq.rs
@@ -92,10 +92,6 @@ impl Seq {
             changed = true;
         }
         let tone = self._pop();
-        eprintln!(
-            " popped ({:?}, {}): had_more={}, beats={:?} eof={} from {}",
-            tone, changed, self.had_more, self.beats, self.eof, eof_before,
-        );
         (tone, changed)
     }
 
diff --git a/src/testdata/two_channels_one_bar.txt b/src/testdata/two_channels_one_bar.txt
index 31734d0..58b8fea 100644
--- a/src/testdata/two_channels_one_bar.txt
+++ b/src/testdata/two_channels_one_bar.txt
@@ -1,2 +1,2 @@
-a b c
-a5 b5 c5
+2a 2b 2c
+. a5 . b5 . c5 
diff --git a/src/testdata/two_channels_two_bars.txt b/src/testdata/two_channels_two_bars.txt
new file mode 100644
index 0000000..4ab8240
--- /dev/null
+++ b/src/testdata/two_channels_two_bars.txt
@@ -0,0 +1,5 @@
+a b c
+2a 2b 2c
+
+d e f
+2d 2e 2f