diff --git a/src/model/song.rs b/src/model/song.rs
index 8cfa8a3..ad340bc 100644
--- a/src/model/song.rs
+++ b/src/model/song.rs
@@ -64,7 +64,6 @@ use crate::subsonic;
 use adw::{prelude::*, subclass::prelude::*};
 use glib::Object;
 use gtk::{gdk, glib};
-use std::rc::Rc;
 
 glib::wrapper! {
     pub struct Song(ObjectSubclass<imp::Song>);
@@ -72,10 +71,11 @@ glib::wrapper! {
 
 impl Song {
     pub fn from_child(
-        api: &Rc<subsonic::Client>,
+        window: &crate::ui::Window,
         song: &subsonic::schema::Child,
         load_thumbnail: bool,
     ) -> Self {
+        let api = window.api();
         let song: Song = Object::builder()
             .property("id", &song.id)
             .property("title", &song.title)
@@ -88,14 +88,15 @@ impl Song {
             .build();
 
         if load_thumbnail {
-            let api = Rc::clone(api);
             let id = song.id();
             let song_weak = song.downgrade();
+            let scale_factor = window.scale_factor() as u32; // NOTE: assumed constant
             song.imp()
                 .thumbnail_loading
                 .replace(Some(glib::spawn_future_local(async move {
                     let bytes = api
-                        .cover_art(&id, Some(50)) // TODO: WidgetExt::scale_factor
+                        .cover_art(&id, Some(50 * scale_factor)) // see pixel-size in
+                        // play_queue_song.blp
                         .await
                         .unwrap();
                     let song = match song_weak.upgrade() {
diff --git a/src/ui/window.rs b/src/ui/window.rs
index 5d46ed9..e474213 100644
--- a/src/ui/window.rs
+++ b/src/ui/window.rs
@@ -301,7 +301,7 @@ mod imp {
                 Rc::clone(api.as_ref().unwrap())
             };
             for song in api.random_songs(10).await.unwrap().into_iter() {
-                let song = Song::from_child(&api, &song, true);
+                let song = Song::from_child(&self.obj(), &song, true);
                 self.mpv
                     .command(["loadfile", &song.stream_url(), "append-play"])
                     .unwrap();