diff --git a/src/commands/queue/playlistfind.rs b/src/commands/queue/playlistfind.rs
index d91ef30..f469158 100644
--- a/src/commands/queue/playlistfind.rs
+++ b/src/commands/queue/playlistfind.rs
@@ -2,6 +2,7 @@ use crate::{
     commands::{
         Command, RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
     },
+    filter::parse_filter,
     Request,
 };
 
@@ -12,8 +13,7 @@ impl Command for PlaylistFind {
     const COMMAND: &'static str = "playlistfind";
 
     fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
-        let filter = parts.next().ok_or(RequestParserError::UnexpectedEOF)?;
-        let filter = filter.to_string();
+        let filter = parse_filter(&mut parts)?;
 
         let mut sort_or_window = parts.next();
         let mut sort = None;
diff --git a/src/commands/queue/playlistsearch.rs b/src/commands/queue/playlistsearch.rs
index fac05d4..9400b15 100644
--- a/src/commands/queue/playlistsearch.rs
+++ b/src/commands/queue/playlistsearch.rs
@@ -2,6 +2,7 @@ use crate::{
     commands::{
         Command, RequestParserError, RequestParserResult, ResponseAttributes, ResponseParserError,
     },
+    filter::parse_filter,
     Request,
 };
 
@@ -12,10 +13,7 @@ impl Command for PlaylistSearch {
     const COMMAND: &'static str = "playlistsearch";
 
     fn parse_request(mut parts: std::str::SplitWhitespace<'_>) -> RequestParserResult<'_> {
-        let filter = parts.next().ok_or(RequestParserError::UnexpectedEOF)?;
-        let filter = filter
-            .parse()
-            .map_err(|_| RequestParserError::SyntaxError(0, filter.to_string()))?;
+        let filter = parse_filter(&mut parts)?;
 
         let mut sort_or_window = parts.next();
         let mut sort = None;
diff --git a/src/commands/stored_playlists/searchplaylist.rs b/src/commands/stored_playlists/searchplaylist.rs
index 69f56cf..0d8c898 100644
--- a/src/commands/stored_playlists/searchplaylist.rs
+++ b/src/commands/stored_playlists/searchplaylist.rs
@@ -3,7 +3,8 @@ use crate::{
         Command, Request, RequestParserError, RequestParserResult, ResponseAttributes,
         ResponseParserError,
     },
-    common::{Filter, PlaylistName},
+    common::PlaylistName,
+    filter::parse_filter,
 };
 
 pub struct SearchPlaylist;
@@ -18,10 +19,7 @@ impl Command for SearchPlaylist {
             .parse::<PlaylistName>()
             .map_err(|_| RequestParserError::SyntaxError(0, name.to_owned()))?;
 
-        let filter = parts.next().ok_or(RequestParserError::UnexpectedEOF)?;
-        let filter = filter
-            .parse::<Filter>()
-            .map_err(|_| RequestParserError::SyntaxError(0, filter.to_owned()))?;
+        let filter = parse_filter(&mut parts)?;
 
         let range = parts
             .next()
diff --git a/src/common.rs b/src/common.rs
index 32890cf..4c147c2 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -95,7 +95,6 @@ pub type TagName = String;
 pub type TagValue = String;
 pub type Uri = String;
 pub type Path = String;
-pub type Filter = String;
 pub type Sort = String;
 pub type Version = String;
 pub type Feature = String;
diff --git a/src/filter.rs b/src/filter.rs
index f0fb72c..d030c31 100644
--- a/src/filter.rs
+++ b/src/filter.rs
@@ -1,11 +1,20 @@
-use crate::common::{Priority, Tag};
+use std::str::SplitWhitespace;
 
+use serde::{Deserialize, Serialize};
+
+use crate::{
+    commands::RequestParserError,
+    common::{Priority, Tag},
+};
+
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub enum CaseSensitivity {
     CaseSensitive,
     CaseInsensitive,
     CommandDependent,
 }
 
+#[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
 pub enum Filter {
     Not(Box<Filter>),
     And(Box<Filter>, Box<Filter>),
@@ -30,3 +39,7 @@ pub enum Filter {
     },
     PrioCmp(Priority),
 }
+
+pub fn parse_filter(parts: &mut SplitWhitespace<'_>) -> Result<Filter, RequestParserError> {
+    todo!()
+}
diff --git a/src/request.rs b/src/request.rs
index c82b617..825b11b 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -5,6 +5,7 @@ use serde::{Deserialize, Serialize};
 use crate::common::*;
 
 use crate::commands::*;
+use crate::filter::Filter;
 
 // TODO: SingleLineString