diff --git a/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Models.kt b/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Models.kt
index 257acf4..dfdb686 100644
--- a/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Models.kt
+++ b/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Models.kt
@@ -46,6 +46,21 @@ enum class Type {
     }
 }
 
+enum class Gender {
+    MALE,
+    FEMALE;
+
+    companion object {
+        fun fromString(gender: String): Gender {
+            return valueOf(gender.uppercase())
+        }
+    }
+
+    override fun toString(): String {
+        return this.toString().lowercase()
+    }
+}
+
 data class Tag(
     val property: String,
     val content: String,
@@ -133,26 +148,15 @@ data class Audio(
     val type: String?
 )
 
-/**
- * * video.tv_show - same as video.movie
- * * video.other - same as video.movie
- */
 data class Article(
     val publishedTime: String?,
     val modifiedTime: String?,
     val expirationTime: String?,
-    val section: String?,
     val authors: List<String>,
+    val section: String?,
     val tags: List<String>
 )
 
-data class Profile(
-    val firstName: String?,
-    val lastName: String?,
-    val username: String?,
-    val gender: String?
-)
-
 data class Book(
     val authors: List<String>,
     val isbn: String?,
@@ -160,6 +164,13 @@ data class Book(
     val tags: List<String>
 )
 
+data class Profile(
+    val firstName: String?,
+    val lastName: String?,
+    val username: String?,
+    val gender: Gender?
+)
+
 data class MusicSong(
     val duration: Int?,
     val album: String?,
@@ -170,12 +181,16 @@ data class MusicSong(
 
 data class MusicAlbum(
     val songs: List<String>,
+    val songDisc: Int?,
+    val songTrack: Int?,
     val musician: List<String>,
     val releaseDate: String?
 )
 
 data class MusicPlaylist(
     val songs: List<String>,
+    val songDisc: Int?,
+    val songTrack: Int?,
     val creator: String?
 )
 
diff --git a/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Parser.kt b/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Parser.kt
index 91c5bfa..d77784e 100644
--- a/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Parser.kt
+++ b/opengraphkt/src/main/kotlin/fr/lengrand/opengraphkt/Parser.kt
@@ -350,7 +350,7 @@ class Parser {
      * Builds an Profile object from profile-related tags.
      * 
      * @param groupedTags The map of grouped Tag objects
-     * @return An Profile object, or null if no profile tags are found
+     * @return A Profile object, or null if no profile tags are found
      */
     private fun buildProfile(groupedTags: Map<String, List<Tag>>): Profile? {
         val profileTags = groupedTags.getOrDefault("profile", emptyList())
@@ -362,7 +362,8 @@ class Parser {
         val firstName = profileTags.firstOrNull { it.property == "profile:first_name" }?.content
         val lastName = profileTags.firstOrNull { it.property == "profile:last_name" }?.content
         val username = profileTags.firstOrNull { it.property == "profile:username" }?.content
-        val gender = profileTags.firstOrNull { it.property == "profile:gender" }?.content
+        val genderString = profileTags.firstOrNull { it.property == "profile:gender" }?.content
+        val gender = if(genderString != null) Gender.fromString(genderString) else null
 
         return Profile(
             firstName = firstName,
@@ -440,18 +441,22 @@ class Parser {
         }
 
         val songs = musicTags.filter { it.property == "music:song" }.map { it.content }
+        val songDisc = musicTags.firstOrNull { it.property == "music:song:disc" }?.content?.toIntOrNull()
+        val songTrack = musicTags.firstOrNull { it.property == "music:song:track" }?.content?.toIntOrNull()
         val musicians = musicTags.filter { it.property == "music:musician" }.map { it.content }
         val releaseDate = musicTags.firstOrNull { it.property == "music:release_date" }?.content
 
         return MusicAlbum(
             songs = songs,
+            songDisc =  songDisc,
+            songTrack = songTrack,
             musician = musicians,
             releaseDate = releaseDate
         )
     }
 
     /**
-     * Builds an MusicPlaylist object from music.playlist-related tags.
+     * Builds a MusicPlaylist object from music.playlist-related tags.
      * 
      * @param groupedTags The map of grouped Tag objects
      * @return An MusicPlaylist object, or null if no music.playlist tags are found
@@ -464,16 +469,20 @@ class Parser {
         }
 
         val songs = musicTags.filter { it.property == "music:song" }.map { it.content }
+        val songDisc = musicTags.firstOrNull { it.property == "music:song:disc" }?.content?.toIntOrNull()
+        val songTrack = musicTags.firstOrNull { it.property == "music:song:track" }?.content?.toIntOrNull()
         val creator = musicTags.firstOrNull { it.property == "music:creator" }?.content
 
         return MusicPlaylist(
             songs = songs,
+            songDisc =  songDisc,
+            songTrack = songTrack,
             creator = creator
         )
     }
 
     /**
-     * Builds an MusicRadioStation object from music.radio_station-related tags.
+     * Builds a MusicRadioStation object from music.radio_station-related tags.
      * 
      * @param groupedTags The map of grouped Tag objects
      * @return An MusicRadioStation object, or null if no music.radio_station tags are found
@@ -553,4 +562,4 @@ class Parser {
             series = series
         )
     }
-}
\ No newline at end of file
+}
diff --git a/opengraphkt/src/test/kotlin/fr/lengrand/opengraphkt/ParserTest.kt b/opengraphkt/src/test/kotlin/fr/lengrand/opengraphkt/ParserTest.kt
index 31f3bab..b068522 100644
--- a/opengraphkt/src/test/kotlin/fr/lengrand/opengraphkt/ParserTest.kt
+++ b/opengraphkt/src/test/kotlin/fr/lengrand/opengraphkt/ParserTest.kt
@@ -229,7 +229,7 @@ class ParserTest {
         assertEquals("John", openGraphData.profile.firstName)
         assertEquals("Doe", openGraphData.profile.lastName)
         assertEquals("johndoe", openGraphData.profile.username)
-        assertEquals("male", openGraphData.profile.gender)
+        assertEquals(Gender.MALE, openGraphData.profile.gender)
     }
 
     @Test