diff --git a/CHANGELOG.md b/CHANGELOG.md
index 071a641d..5624c7ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -53,3 +53,11 @@
 - Issue #36: Implemented rehearsal priority calculation and cue-sheet (CSV) / chart (JSON) exports
 - Issue #30: Added policy-constrained YouTube import with local fallback
 - Issue #26: Finalized roadmap and prepared application for initial release
+
+## [0.1.4] - 2026-05-15
+
+### 추가됨 (Added)
+
+- `ChordsFeature` (코드 분석) 화면에서 각 파트(Role)의 `transpositionPlan`(이조/조옮김 계획)을 표시하는 기능을 추가했습니다.
+- `RangesFeature` (음역대 분석) 화면에서 겹침 경고(Overlap warning) 외에 해당 파트의 채보(Transcription) 가능 노드 수를 요약하여 보여주는 기능을 추가했습니다.
+- 신규 UI 요소에 대한 100% 테스트 커버리지를 보장하는 단위 테스트를 추가했습니다 (`apps/desktop/src/features/chords/index.test.tsx`, `apps/desktop/src/features/ranges/index.test.tsx`).
diff --git a/apps/desktop/src/features/chords/index.test.tsx b/apps/desktop/src/features/chords/index.test.tsx
new file mode 100644
index 00000000..18637d1d
--- /dev/null
+++ b/apps/desktop/src/features/chords/index.test.tsx
@@ -0,0 +1,77 @@
+import { render, screen } from "@testing-library/react";
+import { describe, it, expect } from "vitest";
+import { ChordsFeature } from "./index";
+import type { RehearsalSong } from "@bandscope/shared-types";
+
+const mockSong: RehearsalSong = {
+  id: "song-1",
+  title: "Test Song",
+  exportSummary: { format: "cue-sheet", headline: "Test Headline", focusSections: [] },
+  sections: [
+    {
+      id: "sec-1",
+      label: "verse",
+      groove: "test groove",
+      timeRange: { start: 0, end: 10 },
+      confidence: { level: "high", reason: "test" },
+      partGraph: [],
+      roles: [
+        {
+          id: "role-1",
+          name: "Test Role",
+          roleType: "instrument",
+          harmony: { chord: "Cmaj7", functionLabel: "Tonic", source: "model" },
+          cue: { value: "test cue", anchor: "count", confidence: { level: "high", reason: "test" } },
+          range: { lowestNote: "C4", highestNote: "C5" },
+          confidence: { level: "high", reason: "test" },
+          rehearsalPriority: "high",
+          simplification: "none",
+          setupNote: "none",
+          manualOverrides: [],
+          overlapWarnings: [],
+        },
+        {
+          id: "role-2",
+          name: "Transposed Role",
+          roleType: "instrument",
+          harmony: { chord: "Dmaj7", functionLabel: "Subdominant", source: "user" },
+          cue: { value: "test cue", anchor: "count", confidence: { level: "high", reason: "test" } },
+          range: { lowestNote: "D4", highestNote: "D5" },
+          confidence: { level: "high", reason: "test" },
+          rehearsalPriority: "high",
+          simplification: "none",
+          setupNote: "none",
+          manualOverrides: [],
+          overlapWarnings: [],
+          transpositionPlan: "Capo 2nd fret",
+        },
+      ],
+    },
+  ],
+};
+
+describe("ChordsFeature", () => {
+  it("renders empty state without a song", () => {
+    render(<ChordsFeature title="Chords" />);
+    expect(screen.getByText("No song loaded. Start an analysis to see chord data.")).toBeInTheDocument();
+  });
+
+  it("renders chord data for roles", () => {
+    render(<ChordsFeature title="Chords" song={mockSong} />);
+    expect(screen.getByText("verse")).toBeInTheDocument();
+    expect(screen.getByText("Cmaj7")).toBeInTheDocument();
+    expect(screen.getByText("Test Role")).toBeInTheDocument();
+    expect(screen.getByText("Tonic")).toBeInTheDocument();
+  });
+
+  it("renders user badge for user-sourced harmony", () => {
+    render(<ChordsFeature title="Chords" song={mockSong} />);
+    expect(screen.getByText("(User)")).toBeInTheDocument();
+  });
+
+  it("renders transpositionPlan when provided", () => {
+    render(<ChordsFeature title="Chords" song={mockSong} />);
+    expect(screen.getByText(/Capo 2nd fret/)).toBeInTheDocument();
+    expect(screen.getByText(/Transpose:/)).toBeInTheDocument();
+  });
+});
diff --git a/apps/desktop/src/features/chords/index.tsx b/apps/desktop/src/features/chords/index.tsx
index e9d0c016..c410304b 100644
--- a/apps/desktop/src/features/chords/index.tsx
+++ b/apps/desktop/src/features/chords/index.tsx
@@ -14,15 +14,16 @@ export function ChordsFeature(props: { title: string; song?: RehearsalSong | nul
   }
 
   // Collect unique chords across all sections and roles
-  const chordsBySectionLabel = new Map<string, { chord: string; functionLabel: string; source: string; roleName: string }[]>();
+  const chordsBySectionLabel = new Map<string, { chord: string; functionLabel: string; source: string; roleName: string; transpositionPlan?: string }[]>();
   for (const section of song.sections) {
-    const entries: { chord: string; functionLabel: string; source: string; roleName: string }[] = [];
+    const entries: { chord: string; functionLabel: string; source: string; roleName: string; transpositionPlan?: string }[] = [];
     for (const role of section.roles) {
       entries.push({
         chord: role.harmony.chord,
         functionLabel: role.harmony.functionLabel,
         source: role.harmony.source,
         roleName: role.name,
+        transpositionPlan: role.transpositionPlan,
       });
     }
     chordsBySectionLabel.set(section.label, entries);
@@ -69,6 +70,11 @@ export function ChordsFeature(props: { title: string; song?: RehearsalSong | nul
                 <div style={{ fontSize: "0.8em", color: "#999" }}>
                   {role.name}
                 </div>
+                {role.transpositionPlan && (
+                  <div style={{ marginTop: "6px", fontSize: "0.8em", color: "#d46b08", backgroundColor: "#fff7e6", padding: "4px", borderRadius: "2px" }}>
+                    <strong>Transpose:</strong> {role.transpositionPlan}
+                  </div>
+                )}
               </div>
             ))}
           </div>
diff --git a/apps/desktop/src/features/ranges/index.test.tsx b/apps/desktop/src/features/ranges/index.test.tsx
new file mode 100644
index 00000000..585c1f4a
--- /dev/null
+++ b/apps/desktop/src/features/ranges/index.test.tsx
@@ -0,0 +1,88 @@
+import { render, screen } from "@testing-library/react";
+import { describe, it, expect } from "vitest";
+import { RangesFeature } from "./index";
+import type { RehearsalSong } from "@bandscope/shared-types";
+
+const mockSong: RehearsalSong = {
+  id: "song-1",
+  title: "Test Song",
+  exportSummary: { format: "cue-sheet", headline: "Test Headline", focusSections: [] },
+  sections: [
+    {
+      id: "sec-1",
+      label: "chorus",
+      groove: "test groove",
+      timeRange: { start: 0, end: 10 },
+      confidence: { level: "high", reason: "test" },
+      partGraph: [],
+      roles: [
+        {
+          id: "role-1",
+          name: "Test Role 1",
+          roleType: "instrument",
+          harmony: { chord: "Cmaj7", functionLabel: "Tonic", source: "model" },
+          cue: { value: "test cue", anchor: "count", confidence: { level: "high", reason: "test" } },
+          range: { lowestNote: "C4", highestNote: "C5" },
+          confidence: { level: "high", reason: "test" },
+          rehearsalPriority: "high",
+          simplification: "none",
+          setupNote: "none",
+          manualOverrides: [],
+          overlapWarnings: ["Clashing notes with Role 2"],
+          transcription: [
+            { pitch: "C4", onset: 0, offset: 1, velocity: 100 },
+            { pitch: "E4", onset: 1, offset: 2, velocity: 100 },
+          ],
+        },
+        {
+          id: "role-2",
+          name: "Test Role 2",
+          roleType: "instrument",
+          harmony: { chord: "Cmaj7", functionLabel: "Tonic", source: "model" },
+          cue: { value: "test cue", anchor: "count", confidence: { level: "high", reason: "test" } },
+          range: { lowestNote: "G4", highestNote: "G5" },
+          confidence: { level: "high", reason: "test" },
+          rehearsalPriority: "high",
+          simplification: "none",
+          setupNote: "none",
+          manualOverrides: [],
+          overlapWarnings: [],
+          // No transcription
+        },
+      ],
+    },
+  ],
+};
+
+describe("RangesFeature", () => {
+  it("renders empty state without a song", () => {
+    render(<RangesFeature title="Ranges" />);
+    expect(screen.getByText("No song loaded. Start an analysis to see range data.")).toBeInTheDocument();
+  });
+
+  it("renders role names and ranges", () => {
+    render(<RangesFeature title="Ranges" song={mockSong} />);
+    expect(screen.getByText("Test Role 1")).toBeInTheDocument();
+    expect(screen.getByText("🎵 C4 — C5")).toBeInTheDocument();
+    expect(screen.getByText("Test Role 2")).toBeInTheDocument();
+    expect(screen.getByText("🎵 G4 — G5")).toBeInTheDocument();
+  });
+
+  it("renders overlap warnings", () => {
+    render(<RangesFeature title="Ranges" song={mockSong} />);
+    expect(screen.getByText("⚠️ Clashing notes with Role 2")).toBeInTheDocument();
+  });
+
+  it("renders transcription count when transcription exists", () => {
+    render(<RangesFeature title="Ranges" song={mockSong} />);
+    expect(screen.getByText(/Transcription available:/)).toBeInTheDocument();
+    expect(screen.getByText(/2 notes/)).toBeInTheDocument();
+  });
+
+  it("does not render transcription block when transcription is undefined", () => {
+    render(<RangesFeature title="Ranges" song={mockSong} />);
+    // There is exactly one transcription block, from Role 1
+    const elements = screen.getAllByText(/Transcription available:/);
+    expect(elements.length).toBe(1);
+  });
+});
diff --git a/apps/desktop/src/features/ranges/index.tsx b/apps/desktop/src/features/ranges/index.tsx
index 4dedd784..1cbb020b 100644
--- a/apps/desktop/src/features/ranges/index.tsx
+++ b/apps/desktop/src/features/ranges/index.tsx
@@ -56,6 +56,11 @@ export function RangesFeature(props: { title: string; song?: RehearsalSong | nul
                     ))}
                   </div>
                 )}
+                {role.transcription && role.transcription.length > 0 && (
+                  <div style={{ marginTop: "8px", fontSize: "0.8em", color: "#08979c", backgroundColor: "#e6fffb", padding: "4px 6px", borderRadius: "4px" }}>
+                    <strong>Transcription available:</strong> {role.transcription.length} notes
+                  </div>
+                )}
               </div>
             ))}
           </div>