diff --git a/Cargo.lock b/Cargo.lock
index 491d365..890b6ad 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -273,6 +273,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.12.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "25db6b064527c5d482d0423354fcd07a89a2dfe07b67892e62411946db7f07b0"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.6"
@@ -366,6 +375,7 @@ name = "musichoard"
 version = "0.1.0"
 dependencies = [
  "crossterm",
+ "itertools 0.12.0",
  "mockall",
  "once_cell",
  "openssh",
@@ -476,7 +486,7 @@ checksum = "59230a63c37f3e18569bdb90e4a89cbf5bf8b06fea0b84e65ea10cc4df47addd"
 dependencies = [
  "difflib",
  "float-cmp",
- "itertools",
+ "itertools 0.10.5",
  "normalize-line-endings",
  "predicates-core",
  "regex",
diff --git a/Cargo.toml b/Cargo.toml
index 395c326..e9d6add 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,6 +7,7 @@ edition = "2021"
 
 [dependencies]
 crossterm = { version = "0.26.1", optional = true}
+itertools = { version = "0.12.0" }
 openssh = { version = "0.9.9", features = ["native-mux"], default-features = false, optional = true}
 ratatui = { version = "0.20.1", optional = true}
 serde = { version = "1.0.159", features = ["derive"] }
diff --git a/src/bin/mh-edit.rs b/src/bin/mh-edit.rs
index 5d0bb2e..60d9bcc 100644
--- a/src/bin/mh-edit.rs
+++ b/src/bin/mh-edit.rs
@@ -126,38 +126,24 @@ impl ArtistCommand {
                 clear_musicbutler_urls,
                 urls
             ),
-            ArtistCommand::Bandcamp(url_command) => {
-                match url_command {
-                    UrlCommand::Add(_) => {
-                        // Add URL.
-                    }
-                    UrlCommand::Remove(_) => {
-                        // Remove URL if it exists.
-                    }
-                    UrlCommand::Set(_) => {
-                        // Set the URLs regardless of previous (if any) value.
-                    }
-                    UrlCommand::Clear(_) => {
-                        // Remove the URLs.
-                    }
-                }
-            }
-            ArtistCommand::Qobuz(url_command) => {
-                match url_command {
-                    UrlCommand::Add(_) => {
-                        // Add URL or return error if one already existss.
-                    }
-                    UrlCommand::Remove(_) => {
-                        // Remove URL if it exists.
-                    }
-                    UrlCommand::Set(_) => {
-                        // Set the URL regardless of previous (if any) value.
-                    }
-                    UrlCommand::Clear(_) => {
-                        // Remove the URL.
-                    }
-                }
-            }
+            ArtistCommand::Bandcamp(url_command) => url_command_dispatch!(
+                url_command,
+                music_hoard,
+                add_bandcamp_urls,
+                remove_bandcamp_urls,
+                set_bandcamp_urls,
+                clear_bandcamp_urls,
+                urls
+            ),
+            ArtistCommand::Qobuz(url_command) => url_command_dispatch!(
+                url_command,
+                music_hoard,
+                add_qobuz_url,
+                remove_qobuz_url,
+                set_qobuz_url,
+                clear_qobuz_url,
+                url
+            ),
         }
     }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 02f93be..52b86a7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,12 +6,13 @@ pub mod library;
 use std::{
     cmp::Ordering,
     collections::{HashMap, HashSet},
-    fmt,
+    fmt::{self, Debug},
     iter::Peekable,
     mem,
 };
 
 use database::IDatabase;
+use itertools::Itertools;
 use library::{ILibrary, Item, Query};
 use serde::{Deserialize, Serialize};
 use url::Url;
@@ -79,6 +80,20 @@ impl MusicBrainz {
     }
 }
 
+impl TryFrom<&str> for MusicBrainz {
+    type Error = Error;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        MusicBrainz::new(value)
+    }
+}
+
+impl AsRef<str> for MusicBrainz {
+    fn as_ref(&self) -> &str {
+        self.0.as_str()
+    }
+}
+
 impl IUrl for MusicBrainz {
     fn url(&self) -> &str {
         self.0.as_str()
@@ -119,6 +134,20 @@ impl MusicButler {
     }
 }
 
+impl TryFrom<&str> for MusicButler {
+    type Error = Error;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        MusicButler::new(value)
+    }
+}
+
+impl AsRef<str> for MusicButler {
+    fn as_ref(&self) -> &str {
+        self.0.as_str()
+    }
+}
+
 impl IUrl for MusicButler {
     fn url(&self) -> &str {
         self.0.as_str()
@@ -152,6 +181,20 @@ impl Bandcamp {
     }
 }
 
+impl TryFrom<&str> for Bandcamp {
+    type Error = Error;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        Bandcamp::new(value)
+    }
+}
+
+impl AsRef<str> for Bandcamp {
+    fn as_ref(&self) -> &str {
+        self.0.as_str()
+    }
+}
+
 impl IUrl for Bandcamp {
     fn url(&self) -> &str {
         self.0.as_str()
@@ -185,6 +228,20 @@ impl Qobuz {
     }
 }
 
+impl TryFrom<&str> for Qobuz {
+    type Error = Error;
+
+    fn try_from(value: &str) -> Result<Self, Self::Error> {
+        Qobuz::new(value)
+    }
+}
+
+impl AsRef<str> for Qobuz {
+    fn as_ref(&self) -> &str {
+        self.0.as_str()
+    }
+}
+
 impl IUrl for Qobuz {
     fn url(&self) -> &str {
         self.0.as_str()
@@ -325,6 +382,46 @@ pub struct Artist {
     pub albums: Vec<Album>,
 }
 
+macro_rules! artist_unique_url_dispatch {
+    ($add:ident, $remove:ident, $set:ident, $clear:ident, $label:literal, $field:ident) => {
+        fn $add<S: AsRef<str>>(&mut self, url: S) -> Result<(), Error> {
+            Self::add_unique_url(&self.id, $label, &mut self.properties.$field, url)
+        }
+
+        fn $remove<S: AsRef<str>>(&mut self, url: S) -> Result<(), Error> {
+            Self::remove_unique_url(&self.id, $label, &mut self.properties.$field, url)
+        }
+
+        fn $set<S: AsRef<str>>(&mut self, url: S) -> Result<(), Error> {
+            Self::set_unique_url(&mut self.properties.$field, url)
+        }
+
+        fn $clear(&mut self) {
+            Self::clear_unique_url(&mut self.properties.$field);
+        }
+    };
+}
+
+macro_rules! artist_multi_url_dispatch {
+    ($add:ident, $remove:ident, $set:ident, $clear:ident, $label:literal, $field:ident) => {
+        fn $add<S: AsRef<str>>(&mut self, urls: Vec<S>) -> Result<(), Error> {
+            Self::add_multi_urls(&self.id, $label, &mut self.properties.$field, urls)
+        }
+
+        fn $remove<S: AsRef<str>>(&mut self, urls: Vec<S>) -> Result<(), Error> {
+            Self::remove_multi_urls(&self.id, $label, &mut self.properties.$field, urls)
+        }
+
+        fn $set<S: AsRef<str>>(&mut self, urls: Vec<S>) -> Result<(), Error> {
+            Self::set_multi_urls(&mut self.properties.$field, urls)
+        }
+
+        fn $clear(&mut self) {
+            Self::clear_multi_urls(&mut self.properties.$field);
+        }
+    };
+}
+
 impl Artist {
     pub fn new(id: ArtistId) -> Self {
         Artist {
@@ -334,106 +431,189 @@ impl Artist {
         }
     }
 
-    fn add_musicbrainz_url<S: AsRef<str>>(&mut self, url: S) -> Result<(), Error> {
-        if self.properties.musicbrainz.is_some() {
-            return Err(Error::CollectionError(format!(
-                "artist '{}' already has a MusicBrainz URL",
-                self.id
-            )));
+    fn add_unique_url<
+        S: AsRef<str>,
+        T: for<'a> TryFrom<&'a str, Error = Error> + Eq + AsRef<str>,
+    >(
+        artist_id: &ArtistId,
+        label: &'static str,
+        container: &mut Option<T>,
+        url: S,
+    ) -> Result<(), Error> {
+        let url: T = url.as_ref().try_into()?;
+
+        if let Some(current) = container {
+            if current == &url {
+                return Err(Error::CollectionError(format!(
+                    "artist '{}' already has this {} URL: {}",
+                    artist_id,
+                    label,
+                    current.as_ref()
+                )));
+            } else {
+                return Err(Error::CollectionError(format!(
+                    "artist '{}' already has a different {} URL: {}",
+                    artist_id,
+                    label,
+                    current.as_ref()
+                )));
+            }
         }
 
-        self.properties.musicbrainz = Some(MusicBrainz::new(url)?);
+        _ = container.insert(url);
         Ok(())
     }
 
-    fn remove_musicbrainz_url<S: AsRef<str>>(&mut self, url: S) -> Result<(), Error> {
-        if self.properties.musicbrainz.is_none() {
+    fn remove_unique_url<
+        S: AsRef<str>,
+        T: for<'a> TryFrom<&'a str, Error = Error> + Eq + AsRef<str>,
+    >(
+        artist_id: &ArtistId,
+        label: &'static str,
+        container: &mut Option<T>,
+        url: S,
+    ) -> Result<(), Error> {
+        if container.is_none() {
             return Err(Error::CollectionError(format!(
-                "artist '{}' does not have a MusicBrainz URL",
-                self.id
+                "artist '{}' does not have a {} URL",
+                artist_id, label
             )));
         }
 
-        if self.properties.musicbrainz.as_ref().unwrap().0.as_str() == url.as_ref() {
-            self.properties.musicbrainz = None;
+        let url: T = url.as_ref().try_into()?;
+        if container.as_ref().unwrap() == &url {
+            _ = container.take();
             Ok(())
         } else {
             Err(Error::CollectionError(format!(
-                "artist '{}' does not have this MusicBrainz URL {}",
-                self.id,
+                "artist '{}' does not have this {} URL: {}",
+                artist_id,
+                label,
                 url.as_ref(),
             )))
         }
     }
 
-    fn set_musicbrainz_url<S: AsRef<str>>(&mut self, url: S) -> Result<(), Error> {
-        self.properties.musicbrainz = Some(MusicBrainz::new(url)?);
+    fn set_unique_url<S: AsRef<str>, T: for<'a> TryFrom<&'a str, Error = Error>>(
+        container: &mut Option<T>,
+        url: S,
+    ) -> Result<(), Error> {
+        _ = container.insert(url.as_ref().try_into()?);
         Ok(())
     }
 
-    fn clear_musicbrainz_url(&mut self) -> Result<(), Error> {
-        self.properties.musicbrainz = None;
-        Ok(())
+    fn clear_unique_url<T>(container: &mut Option<T>) {
+        _ = container.take();
     }
 
-    fn add_musicbutler_urls<S: AsRef<str>>(&mut self, urls: Vec<S>) -> Result<(), Error> {
+    fn add_multi_urls<
+        S: AsRef<str>,
+        T: for<'a> TryFrom<&'a str, Error = Error> + Eq + AsRef<str>,
+    >(
+        artist_id: &ArtistId,
+        label: &'static str,
+        container: &mut Vec<T>,
+        urls: Vec<S>,
+    ) -> Result<(), Error> {
         // Convert into URLs first to facilitate later comparison.
-        let urls: Result<Vec<MusicButler>, Error> = urls.iter().map(MusicButler::new).collect();
+        let urls: Result<Vec<T>, Error> = urls.iter().map(|url| url.as_ref().try_into()).collect();
         let mut urls = urls?;
 
         // Do not check and insert. First check if any of the provided URLs already exist so that
         // the vector remains unchanged in case of failure.
-        let overlap: Vec<&MusicButler> = urls
-            .iter()
-            .filter(|url| self.properties.musicbutler.contains(url))
-            .collect();
+        let overlap: Vec<&T> = urls.iter().filter(|url| container.contains(url)).collect();
         if !overlap.is_empty() {
             return Err(Error::CollectionError(format!(
-                "artist '{}' already has these MusicButler URL(s): {:?}",
-                self.id, overlap
+                "artist '{}' already has these {} URL(s): {}",
+                artist_id,
+                label,
+                overlap.iter().map(|url| url.as_ref()).format(", ")
             )));
         }
 
-        self.properties.musicbutler.append(&mut urls);
+        container.append(&mut urls);
         Ok(())
     }
 
-    fn remove_musicbutler_urls<S: AsRef<str>>(&mut self, urls: Vec<S>) -> Result<(), Error> {
+    fn remove_multi_urls<
+        S: AsRef<str>,
+        T: for<'a> TryFrom<&'a str, Error = Error> + Eq + AsRef<str>,
+    >(
+        artist_id: &ArtistId,
+        label: &'static str,
+        container: &mut Vec<T>,
+        urls: Vec<S>,
+    ) -> Result<(), Error> {
         // Convert into URLs first to facilitate later comparison.
-        let urls: Result<Vec<MusicButler>, Error> = urls.iter().map(MusicButler::new).collect();
+        let urls: Result<Vec<T>, Error> = urls.iter().map(|url| url.as_ref().try_into()).collect();
         let urls = urls?;
 
         // Do not check and insert. First check if any of the provided URLs already exist so that
         // the vector remains unchanged in case of failure.
-        let difference: Vec<&MusicButler> = urls
-            .iter()
-            .filter(|url| !self.properties.musicbutler.contains(url))
-            .collect();
+        let difference: Vec<&T> = urls.iter().filter(|url| !container.contains(url)).collect();
         if !difference.is_empty() {
             return Err(Error::CollectionError(format!(
-                "artist '{}' does not have these MusicButler URL(s): {:?}",
-                self.id, difference
+                "artist '{}' does not have these {} URL(s): {}",
+                artist_id,
+                label,
+                difference.iter().map(|url| url.as_ref()).format(", ")
             )));
         }
 
-        let musicbutler = mem::take(&mut self.properties.musicbutler);
-        self.properties.musicbutler = musicbutler
-            .into_iter()
-            .filter(|url| !urls.contains(url))
-            .collect();
+        container.retain(|url| !urls.contains(url));
         Ok(())
     }
 
-    fn set_musicbutler_urls<S: AsRef<str>>(&mut self, urls: Vec<S>) -> Result<(), Error> {
-        let urls: Result<Vec<MusicButler>, Error> = urls.iter().map(MusicButler::new).collect();
-        self.properties.musicbutler = urls?;
+    fn set_multi_urls<S: AsRef<str>, T: for<'a> TryFrom<&'a str, Error = Error>>(
+        container: &mut Vec<T>,
+        urls: Vec<S>,
+    ) -> Result<(), Error> {
+        let urls: Result<Vec<T>, Error> = urls.iter().map(|url| url.as_ref().try_into()).collect();
+        let mut urls = urls?;
+        container.clear();
+        container.append(&mut urls);
         Ok(())
     }
 
-    fn clear_musicbutler_urls(&mut self) -> Result<(), Error> {
-        self.properties.musicbutler.clear();
-        Ok(())
+    fn clear_multi_urls<T>(container: &mut Vec<T>) {
+        container.clear();
     }
+
+    artist_unique_url_dispatch!(
+        add_musicbrainz_url,
+        remove_musicbrainz_url,
+        set_musicbrainz_url,
+        clear_musicbrainz_url,
+        "MusicBrainz",
+        musicbrainz
+    );
+
+    artist_multi_url_dispatch!(
+        add_musicbutler_urls,
+        remove_musicbutler_urls,
+        set_musicbutler_urls,
+        clear_musicbutler_urls,
+        "MusicButler",
+        musicbutler
+    );
+
+    artist_multi_url_dispatch!(
+        add_bandcamp_urls,
+        remove_bandcamp_urls,
+        set_bandcamp_urls,
+        clear_bandcamp_urls,
+        "Bandcamp",
+        bandcamp
+    );
+
+    artist_unique_url_dispatch!(
+        add_qobuz_url,
+        remove_qobuz_url,
+        set_qobuz_url,
+        clear_qobuz_url,
+        "Qobuz",
+        qobuz
+    );
 }
 
 impl PartialOrd for Artist {
@@ -597,6 +777,72 @@ pub struct MusicHoard<LIB, DB> {
     collection: Collection,
 }
 
+macro_rules! music_hoard_unique_url_dispatch {
+    ($add:ident, $remove:ident, $set:ident, $clear:ident) => {
+        pub fn $add<ID: AsRef<ArtistId>, S: AsRef<str>>(
+            &mut self,
+            artist_id: ID,
+            url: S,
+        ) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$add(url)
+        }
+
+        pub fn $remove<ID: AsRef<ArtistId>, S: AsRef<str>>(
+            &mut self,
+            artist_id: ID,
+            url: S,
+        ) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$remove(url)
+        }
+
+        pub fn $set<ID: AsRef<ArtistId>, S: AsRef<str>>(
+            &mut self,
+            artist_id: ID,
+            url: S,
+        ) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$set(url)
+        }
+
+        pub fn $clear<ID: AsRef<ArtistId>>(&mut self, artist_id: ID) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$clear();
+            Ok(())
+        }
+    };
+}
+
+macro_rules! music_hoard_multi_url_dispatch {
+    ($add:ident, $remove:ident, $set:ident, $clear:ident) => {
+        pub fn $add<ID: AsRef<ArtistId>, S: AsRef<str>>(
+            &mut self,
+            artist_id: ID,
+            urls: Vec<S>,
+        ) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$add(urls)
+        }
+
+        pub fn $remove<ID: AsRef<ArtistId>, S: AsRef<str>>(
+            &mut self,
+            artist_id: ID,
+            urls: Vec<S>,
+        ) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$remove(urls)
+        }
+
+        pub fn $set<ID: AsRef<ArtistId>, S: AsRef<str>>(
+            &mut self,
+            artist_id: ID,
+            urls: Vec<S>,
+        ) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$set(urls)
+        }
+
+        pub fn $clear<ID: AsRef<ArtistId>>(&mut self, artist_id: ID) -> Result<(), Error> {
+            self.get_artist_or_err(artist_id.as_ref())?.$clear();
+            Ok(())
+        }
+    };
+}
+
 impl<LIB: ILibrary, DB: IDatabase> MusicHoard<LIB, DB> {
     /// Create a new [`MusicHoard`] with the provided [`ILibrary`] and [`IDatabase`].
     pub fn new(library: Option<LIB>, database: Option<DB>) -> Self {
@@ -687,75 +933,33 @@ impl<LIB: ILibrary, DB: IDatabase> MusicHoard<LIB, DB> {
         }
     }
 
-    pub fn add_musicbrainz_url<ID: AsRef<ArtistId>, S: AsRef<str>>(
-        &mut self,
-        artist_id: ID,
-        url: S,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .add_musicbrainz_url(url)
-    }
+    music_hoard_unique_url_dispatch!(
+        add_musicbrainz_url,
+        remove_musicbrainz_url,
+        set_musicbrainz_url,
+        clear_musicbrainz_url
+    );
 
-    pub fn remove_musicbrainz_url<ID: AsRef<ArtistId>, S: AsRef<str>>(
-        &mut self,
-        artist_id: ID,
-        url: S,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .remove_musicbrainz_url(url)
-    }
+    music_hoard_multi_url_dispatch!(
+        add_musicbutler_urls,
+        remove_musicbutler_urls,
+        set_musicbutler_urls,
+        clear_musicbutler_urls
+    );
 
-    pub fn set_musicbrainz_url<ID: AsRef<ArtistId>, S: AsRef<str>>(
-        &mut self,
-        artist_id: ID,
-        url: S,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .set_musicbrainz_url(url)
-    }
+    music_hoard_multi_url_dispatch!(
+        add_bandcamp_urls,
+        remove_bandcamp_urls,
+        set_bandcamp_urls,
+        clear_bandcamp_urls
+    );
 
-    pub fn clear_musicbrainz_url<ID: AsRef<ArtistId>>(
-        &mut self,
-        artist_id: ID,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .clear_musicbrainz_url()
-    }
-
-    pub fn add_musicbutler_urls<ID: AsRef<ArtistId>, S: AsRef<str>>(
-        &mut self,
-        artist_id: ID,
-        urls: Vec<S>,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .add_musicbutler_urls(urls)
-    }
-
-    pub fn remove_musicbutler_urls<ID: AsRef<ArtistId>, S: AsRef<str>>(
-        &mut self,
-        artist_id: ID,
-        urls: Vec<S>,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .remove_musicbutler_urls(urls)
-    }
-
-    pub fn set_musicbutler_urls<ID: AsRef<ArtistId>, S: AsRef<str>>(
-        &mut self,
-        artist_id: ID,
-        urls: Vec<S>,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .set_musicbutler_urls(urls)
-    }
-
-    pub fn clear_musicbutler_urls<ID: AsRef<ArtistId>>(
-        &mut self,
-        artist_id: ID,
-    ) -> Result<(), Error> {
-        self.get_artist_or_err(artist_id.as_ref())?
-            .clear_musicbutler_urls()
-    }
+    music_hoard_unique_url_dispatch!(
+        add_qobuz_url,
+        remove_qobuz_url,
+        set_qobuz_url,
+        clear_qobuz_url
+    );
 
     fn sort(collection: &mut [Artist]) {
         collection.sort_unstable();