docs: updated README.md and LICENSE

LICENSE

@@ -121,7 +121,34 @@ Who knows, maybe I'll kick start this project again? ;)
 
 ---
 
-### 3. System Prompt Structure (based on Cline)
+### 3. VexFlow
+
+```
+VexFlow - A JavaScript library for rendering music notation.
+Copyright (c) 2010 Mohit Muthanna Cheppudira
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+```
+
+---
+
+### 4. System Prompt Structure (based on Cline)
 
 Portions of the system prompt structure are derived from the Cline project,
 licensed under the Apache License, Version 2.0.

README.md

@@ -23,6 +23,8 @@ K.G.Studio is a lightweight, modern DAW that runs entirely in the browser with *
 
 ## Latest Updates
 
+- **2026.05.10**: Added **staff notation (sheet music) view** — the piano roll now offers a full standard notation mode. Switch between Piano Roll and Sheet Music views using the toggle in the piano roll toolbar. In sheet music mode, notes are engraved via VexFlow with automatic clef selection (treble or bass) based on the active instrument, key signature rendering, automatic beam grouping, ties across bar lines, and configurable quantization for note-value resolution. Enable **Track Scope** to render all MIDI regions on the track as a continuous score rather than a single isolated region.
+
 - **2026.05.09**: Added **audio recording** — record directly from your microphone into an audio track. A live waveform preview grows in real time as you record, and the region is committed to the timeline as a standard audio region when you stop. Added **audio I/O device selection** in Settings so you can choose your preferred microphone input and audio output device.
 
 - **2026.05.08**: Added **MIDI automation** — draw and edit pitch bend and MIDI CC curves (CC1 Modulation, CC2 Breath, CC7 Volume, CC11 Expression, CC64 Sustain) in an editable automation lane below the piano grid. Added **track-level automation**: each track now has a dedicated automation panel where you can view and edit the same curves directly on the timeline. Real-time MIDI controller input (pitch wheel, CC pedals) is recorded and played back with per-lane interpolation. Added the **Event List Panel** — a tabbed sidebar (Notes / Pitch Bend / Controller) for inspecting and inline-editing all events in the active MIDI region. Added **region multi-select** with lasso and bulk move/resize, and **merge MIDI regions**.
@@ -383,4 +385,4 @@ Licensed under the Apache License, Version 2.0, with additional terms (see `LICE
 - No patent applications using this software or assets
 - Attribution required when used in public/commercial products (“Powered by K.G.Studio”)  
 
-Third‑party notices (e.g., FluidR3_GM SoundFont, midi‑js‑soundfonts, and prompt structure notes) are included in `LICENSE`.
+Third‑party notices (e.g., FluidR3_GM SoundFont, midi‑js‑soundfonts, VexFlow, and prompt structure notes) are included in `LICENSE`.