diff --git a/test/syntax/default_path.json b/test/syntax/default_path.json
new file mode 100644
index 0000000..b812646
--- /dev/null
+++ b/test/syntax/default_path.json
@@ -0,0 +1,92 @@
+{
+  "elements": [
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "DefaultPath/SubPath1/sample1.wav"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "control",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "default_path",
+            "value": "DefaultPath\\SubPath2\\"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "sample2.wav"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "control",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "default_path",
+            "value": "DefaultPath/SubPath1/sample"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "1.wav"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "control"
+    },
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "DefaultPath/SubPath2/sample2.wav"
+          }
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/test/syntax/default_path.sfz b/test/syntax/default_path.sfz
new file mode 100644
index 0000000..da15889
--- /dev/null
+++ b/test/syntax/default_path.sfz
@@ -0,0 +1,10 @@
+<region> sample=DefaultPath/SubPath1/sample1.wav
+
+<control> default_path=DefaultPath\SubPath2\
+<region> sample=sample2.wav
+
+<control> default_path=DefaultPath/SubPath1/sample
+<region> sample=1.wav
+
+<control> // New control headers reset the default path
+<region> sample=DefaultPath/SubPath2/sample2.wav
diff --git a/test/syntax/default_path.xml b/test/syntax/default_path.xml
new file mode 100644
index 0000000..5d6e480
--- /dev/null
+++ b/test/syntax/default_path.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0"?>
+<region>
+	<opcode name="sample" value="DefaultPath/SubPath1/sample1.wav" />
+</region>
+<control>
+	<opcode name="default_path" value="DefaultPath\SubPath2\" />
+</control>
+<region>
+	<opcode name="sample" value="sample2.wav" />
+</region>
+<control>
+	<opcode name="default_path" value="DefaultPath/SubPath1/sample" />
+</control>
+<region>
+	<opcode name="sample" value="1.wav" />
+</region>
+<control />
+<region>
+	<opcode name="sample" value="DefaultPath/SubPath2/sample2.wav" />
+</region>
diff --git a/test/syntax/default_path.yaml b/test/syntax/default_path.yaml
new file mode 100644
index 0000000..bded577
--- /dev/null
+++ b/test/syntax/default_path.yaml
@@ -0,0 +1,52 @@
+elements:
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: DefaultPath/SubPath1/sample1.wav
+  - type: element
+    name: control
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: default_path
+          value: DefaultPath\SubPath2\
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: sample2.wav
+  - type: element
+    name: control
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: default_path
+          value: DefaultPath/SubPath1/sample
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: 1.wav
+  - type: element
+    name: control
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: DefaultPath/SubPath2/sample2.wav
+
diff --git a/test/syntax/default_path_generator.json b/test/syntax/default_path_generator.json
new file mode 100644
index 0000000..50dc6c6
--- /dev/null
+++ b/test/syntax/default_path_generator.json
@@ -0,0 +1,32 @@
+{
+  "elements": [
+    {
+      "type": "element",
+      "name": "control",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "default_path",
+            "value": "DefaultPath/SubPath1"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "*sine"
+          }
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/test/syntax/default_path_generator.sfz b/test/syntax/default_path_generator.sfz
new file mode 100644
index 0000000..8b7b652
--- /dev/null
+++ b/test/syntax/default_path_generator.sfz
@@ -0,0 +1,2 @@
+<control> default_path=DefaultPath/SubPath1
+<region> sample=*sine
\ No newline at end of file
diff --git a/test/syntax/default_path_generator.xml b/test/syntax/default_path_generator.xml
new file mode 100644
index 0000000..6e127bf
--- /dev/null
+++ b/test/syntax/default_path_generator.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0"?>
+<control>
+	<opcode name="default_path" value="DefaultPath/SubPath1" />
+</control>
+<region>
+	<opcode name="sample" value="*sine" />
+</region>
diff --git a/test/syntax/default_path_generator.yaml b/test/syntax/default_path_generator.yaml
new file mode 100644
index 0000000..cb76343
--- /dev/null
+++ b/test/syntax/default_path_generator.yaml
@@ -0,0 +1,18 @@
+elements:
+  - type: element
+    name: control
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: default_path
+          value: DefaultPath/SubPath1
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: '*sine'
+
diff --git a/test/syntax/default_path_include.json b/test/syntax/default_path_include.json
new file mode 100644
index 0000000..9985094
--- /dev/null
+++ b/test/syntax/default_path_include.json
@@ -0,0 +1,204 @@
+{
+  "elements": [
+    {
+      "type": "element",
+      "name": "control"
+    },
+    {
+      "type": "element",
+      "name": "master",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "ampeg_release",
+            "value": "1"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "control",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "default_path",
+            "value": "../../test/syntax//path-a"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "piano.wav"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "pitch_keycenter",
+            "value": "60"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "lokey",
+            "value": "58"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "hikey",
+            "value": "62"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "lovel",
+            "value": "1"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "hivel",
+            "value": "20"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "locc64",
+            "value": "64"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "hicc64",
+            "value": "127"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "master",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "ampeg_release",
+            "value": "3"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "control",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "default_path",
+            "value": "../../test/syntax//path-b"
+          }
+        }
+      ]
+    },
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "piano.wav"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "pitch_keycenter",
+            "value": "60"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "lokey",
+            "value": "58"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "hikey",
+            "value": "62"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "lovel",
+            "value": "1"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "hivel",
+            "value": "20"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "locc64",
+            "value": "64"
+          }
+        },
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "hicc64",
+            "value": "127"
+          }
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/test/syntax/default_path_include.sfz b/test/syntax/default_path_include.sfz
new file mode 100644
index 0000000..b3e748a
--- /dev/null
+++ b/test/syntax/default_path_include.sfz
@@ -0,0 +1,16 @@
+<control>
+#define $USERPATH ../../test/syntax/
+
+<master>
+ampeg_release=1
+
+<control>
+default_path=$USERPATH/path-a
+#include "$USERPATH/basic.sfz"
+
+<master>
+ampeg_release=3
+
+<control>
+default_path=$USERPATH/path-b
+#include "$USERPATH/basic.sfz"
diff --git a/test/syntax/default_path_include.xml b/test/syntax/default_path_include.xml
new file mode 100644
index 0000000..eaa6cd8
--- /dev/null
+++ b/test/syntax/default_path_include.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0"?>
+<control />
+<master>
+	<opcode name="ampeg_release" value="1" />
+</master>
+<control>
+	<opcode name="default_path" value="../../test/syntax//path-a" />
+</control>
+<region>
+	<opcode name="sample" value="piano.wav" />
+	<opcode name="pitch_keycenter" value="60" />
+	<opcode name="lokey" value="58" />
+	<opcode name="hikey" value="62" />
+	<opcode name="lovel" value="1" />
+	<opcode name="hivel" value="20" />
+	<opcode name="locc64" value="64" />
+	<opcode name="hicc64" value="127" />
+</region>
+<master>
+	<opcode name="ampeg_release" value="3" />
+</master>
+<control>
+	<opcode name="default_path" value="../../test/syntax//path-b" />
+</control>
+<region>
+	<opcode name="sample" value="piano.wav" />
+	<opcode name="pitch_keycenter" value="60" />
+	<opcode name="lokey" value="58" />
+	<opcode name="hikey" value="62" />
+	<opcode name="lovel" value="1" />
+	<opcode name="hivel" value="20" />
+	<opcode name="locc64" value="64" />
+	<opcode name="hicc64" value="127" />
+</region>
diff --git a/test/syntax/default_path_include.yaml b/test/syntax/default_path_include.yaml
new file mode 100644
index 0000000..271ccfd
--- /dev/null
+++ b/test/syntax/default_path_include.yaml
@@ -0,0 +1,122 @@
+elements:
+  - type: element
+    name: control
+  - type: element
+    name: master
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: ampeg_release
+          value: '1'
+  - type: element
+    name: control
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: default_path
+          value: ../../test/syntax//path-a
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: piano.wav
+      - type: element
+        name: opcode
+        attributes:
+          name: pitch_keycenter
+          value: '60'
+      - type: element
+        name: opcode
+        attributes:
+          name: lokey
+          value: '58'
+      - type: element
+        name: opcode
+        attributes:
+          name: hikey
+          value: '62'
+      - type: element
+        name: opcode
+        attributes:
+          name: lovel
+          value: '1'
+      - type: element
+        name: opcode
+        attributes:
+          name: hivel
+          value: '20'
+      - type: element
+        name: opcode
+        attributes:
+          name: locc64
+          value: '64'
+      - type: element
+        name: opcode
+        attributes:
+          name: hicc64
+          value: '127'
+  - type: element
+    name: master
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: ampeg_release
+          value: '3'
+  - type: element
+    name: control
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: default_path
+          value: ../../test/syntax//path-b
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: piano.wav
+      - type: element
+        name: opcode
+        attributes:
+          name: pitch_keycenter
+          value: '60'
+      - type: element
+        name: opcode
+        attributes:
+          name: lokey
+          value: '58'
+      - type: element
+        name: opcode
+        attributes:
+          name: hikey
+          value: '62'
+      - type: element
+        name: opcode
+        attributes:
+          name: lovel
+          value: '1'
+      - type: element
+        name: opcode
+        attributes:
+          name: hivel
+          value: '20'
+      - type: element
+        name: opcode
+        attributes:
+          name: locc64
+          value: '64'
+      - type: element
+        name: opcode
+        attributes:
+          name: hicc64
+          value: '127'
+
diff --git a/test/syntax/default_path_reset.json b/test/syntax/default_path_reset.json
new file mode 100644
index 0000000..509189f
--- /dev/null
+++ b/test/syntax/default_path_reset.json
@@ -0,0 +1,18 @@
+{
+  "elements": [
+    {
+      "type": "element",
+      "name": "region",
+      "elements": [
+        {
+          "type": "element",
+          "name": "opcode",
+          "attributes": {
+            "name": "sample",
+            "value": "DefaultPath/SubPath2/sample2.wav"
+          }
+        }
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/test/syntax/default_path_reset.sfz b/test/syntax/default_path_reset.sfz
new file mode 100644
index 0000000..55a4bea
--- /dev/null
+++ b/test/syntax/default_path_reset.sfz
@@ -0,0 +1 @@
+<region> sample=DefaultPath/SubPath2/sample2.wav
\ No newline at end of file
diff --git a/test/syntax/default_path_reset.xml b/test/syntax/default_path_reset.xml
new file mode 100644
index 0000000..bd9b3d0
--- /dev/null
+++ b/test/syntax/default_path_reset.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0"?>
+<region>
+	<opcode name="sample" value="DefaultPath/SubPath2/sample2.wav" />
+</region>
diff --git a/test/syntax/default_path_reset.yaml b/test/syntax/default_path_reset.yaml
new file mode 100644
index 0000000..0a92e7b
--- /dev/null
+++ b/test/syntax/default_path_reset.yaml
@@ -0,0 +1,10 @@
+elements:
+  - type: element
+    name: region
+    elements:
+      - type: element
+        name: opcode
+        attributes:
+          name: sample
+          value: DefaultPath/SubPath2/sample2.wav
+