diff --git a/apps/desktop/src/features/score/ScoreView.tsx b/apps/desktop/src/features/score/ScoreView.tsx
index 72732450..729f6056 100644
--- a/apps/desktop/src/features/score/ScoreView.tsx
+++ b/apps/desktop/src/features/score/ScoreView.tsx
@@ -197,6 +197,7 @@ export function ScoreView({ song, projectId, onSongUpdate }: ScoreViewProps) {
                       size="icon"
                       onClick={projectId ? () => void handleRemove(projectId, attachment) : undefined}
                       disabled={!projectId}
+                      title={`${t("scoreRemove")}: ${attachment.fileName}`}
                       aria-label={`${t("scoreRemove")}: ${attachment.fileName}`}
                       className="size-10 border-rose-300/25 text-rose-200 hover:bg-rose-400/10"
                     >
diff --git a/apps/desktop/src/features/score/ScoreViewer.test.tsx b/apps/desktop/src/features/score/ScoreViewer.test.tsx
index 3ac2dd60..acd19f65 100644
--- a/apps/desktop/src/features/score/ScoreViewer.test.tsx
+++ b/apps/desktop/src/features/score/ScoreViewer.test.tsx
@@ -120,8 +120,8 @@ describe("ScoreViewer", () => {
       expect(page.render).toHaveBeenCalled();
     });
     expect(page.getViewport).toHaveBeenCalledWith({ scale: 1 });
-    expect(screen.getByRole("button", { name: "Previous page" })).toBeDisabled();
-    expect(screen.getByRole("button", { name: "Next page" })).toBeEnabled();
+    expect(screen.getByRole("button", { name: "Previous page" })).toHaveAttribute("aria-disabled", "true");
+    expect(screen.getByRole("button", { name: "Next page" })).toHaveAttribute("aria-disabled", "false");
   });
 
   it("shows the file name when provided", async () => {
@@ -174,14 +174,14 @@ describe("ScoreViewer", () => {
     expect(await screen.findByText("Page 1 of 3")).toBeInTheDocument();
     const previousButton = screen.getByRole("button", { name: "Previous page" });
     const nextButton = screen.getByRole("button", { name: "Next page" });
-    expect(previousButton).toBeDisabled();
+    expect(previousButton).toHaveAttribute("aria-disabled", "true");
 
     fireEvent.click(nextButton);
     expect(screen.getByText("Page 2 of 3")).toBeInTheDocument();
 
     fireEvent.click(nextButton);
     expect(screen.getByText("Page 3 of 3")).toBeInTheDocument();
-    expect(nextButton).toBeDisabled();
+    expect(nextButton).toHaveAttribute("aria-disabled", "true");
 
     await waitFor(() => {
       expect(doc.getPage).toHaveBeenCalledWith(3);
diff --git a/apps/desktop/src/features/score/ScoreViewer.tsx b/apps/desktop/src/features/score/ScoreViewer.tsx
index 82692469..abd518f2 100644
--- a/apps/desktop/src/features/score/ScoreViewer.tsx
+++ b/apps/desktop/src/features/score/ScoreViewer.tsx
@@ -257,6 +257,7 @@ export function ScoreViewer({ data, fileName, onStatusChange }: ScoreViewerProps
               variant="outline"
               size="icon-lg"
               className="size-12"
+              title={t("scoreViewerZoomOut")}
               aria-label={t("scoreViewerZoomOut")}
               onClick={zoomOut}
             >
@@ -266,6 +267,7 @@ export function ScoreViewer({ data, fileName, onStatusChange }: ScoreViewerProps
               variant="outline"
               size="icon-lg"
               className="size-12"
+              title={t("scoreViewerZoomIn")}
               aria-label={t("scoreViewerZoomIn")}
               onClick={zoomIn}
             >
@@ -291,9 +293,11 @@ export function ScoreViewer({ data, fileName, onStatusChange }: ScoreViewerProps
             variant="outline"
             size="icon-lg"
             className="size-14"
+            title={t("scoreViewerPrevPage")}
             aria-label={t("scoreViewerPrevPage")}
-            disabled={pageNumber <= 1}
-            onClick={goToPreviousPage}
+            aria-disabled={pageNumber <= 1}
+            tabIndex={0}
+            onClick={pageNumber <= 1 ? undefined : goToPreviousPage}
           >
             <ChevronLeft className="size-6" aria-hidden="true" />
           </Button>
@@ -304,9 +308,11 @@ export function ScoreViewer({ data, fileName, onStatusChange }: ScoreViewerProps
             variant="outline"
             size="icon-lg"
             className="size-14"
+            title={t("scoreViewerNextPage")}
             aria-label={t("scoreViewerNextPage")}
-            disabled={pageNumber >= pageCount}
-            onClick={goToNextPage}
+            aria-disabled={pageNumber >= pageCount}
+            tabIndex={0}
+            onClick={pageNumber >= pageCount ? undefined : goToNextPage}
           >
             <ChevronRight className="size-6" aria-hidden="true" />
           </Button>