dj sets + lyrics: a mix that names its own tracks, and words pulled off the separated voice

src/lib/navigation.svelte.js

@@ -59,6 +59,7 @@ const ROOTS = new Set([
     "library",
     "downloads",
     "settings",
+    "playlists",
     "catalog",
 ]);
 
@@ -248,6 +249,18 @@ export function trail() {
             },
         );
     }
+
+    // A playlist sits under the Playlists shelf the same way. The shelf is a
+    // root, so when the page was reached through it the origin crumb already
+    // says Playlists; this branch covers the direct arrivals (a pinned
+    // playlist in the sidebar) by borrowing the shelf from history or
+    // synthesising it.
+    if (here.view === "playlist" && nav.origin?.view !== "playlists") {
+        const known = [...nav.stack].reverse().find((e) => e.view === "playlists");
+        crumbs.push(
+            known ?? { view: "playlists", label: "Playlists", glyph: "playlist", key: "playlists" },
+        );
+    }
     crumbs.push(here);
     return crumbs;
 }