DuetScore: Sheet Music Studio

DuetScore is a live collaborative sheet music studio crafted for musicians, teachers, and ensembles. Open any PDF score to mark fingerings with artisan precision, co-edit in real time during lessons, audition tricky passages, and turn pages hands-free.

Whether you play classical guitar, piano, violin, or study in a conservatory studio, DuetScore treats digital sheet music like fine paper on a wooden stand.

LIVE COLLABORATIVE ROOMS & REMOTE PAGE TURNING
• Real-Time Score Sync: Co-edit PDF sheet music together with zero latency. Every stroke, fingering stamp, and comment appears instantly on every screen.
• Presenter Follow-Me Mode: Guide students' page turns and scroll position remotely during lessons while each player controls their own zoom.
• Live Stylus Cursors & Laser Flash: Point to exact notes with hovering stylus pointers or a double-tap spotlight that fades cleanly.
• Passwordless Student Roster: Onboard students with one-tap join links or QR codes. No student account or password required.

THE MAGIC PEN & INSTRUMENT NOTATION TOOLS
• 12-Sector Rosette Dial: Pause your stylus on the staff to summon a radial dial of notation tools, plus Smart Ink that smooths lines, slurs, and hairpins on lift.
• Classical Guitar Suite: Drop right-hand stamps (p, i, m, a, c), left-hand fingerings (1 to 4, 0), circled strings (1 to 6), C/B barre lines with Roman numerals, H/P/S legato slurs, and mini fretboard chord boxes.
• Piano & Violin Toolbars: Dedicated toolsets for RH/LH color-coded piano fingerings, damper pedal lines, Roman numeral voicing dials, keyboard diagrams, bowing marks, and 15 engraved music symbols.
• Metric Pulse Ruler: Drag a beat ruler across measures with straight, tuplet, or polyrhythm subdivisions (3:2, 4:3) and a woodblock click track.

HEAR YOUR SCORE & MASTER FROM MEMORY
• Passage Audition: Drag over any engraved measure to hear it played in Classical Guitar, Piano, or Violin. Follow the live notehead dial with letter names (C4, F#4) or Fixed-Do solfege at 0.5x to 1.5x speed, solo or broadcast to the room.
• Smart Ivory Masking Tape: Cover measures with virtual paper tape to test memory. Tap to peek at 25% opacity, flash a bar for 2 seconds, or tap Play on a covered bar to hear a 1, 2, or 3-note memory cue while covered.
• Printed Fingerings Filter: Mask printed edition fingerings with paper-toned patches to sight-read clean notes.

SPATIAL AUDIO PINS, ECHO TAKES & ANTI-RUSH ALARMS
• Spatial Audio Demos: Pin voice or instrument recordings directly to any measure on the score.
• Student Echo Takes: Students reply inside the teacher's pin with up to three recorded takes for A/B listening and notes.
• Pedagogy Signs & Hold Alarms: Place Eyes, Caution, Stop, Shift, or Breath badges and arm an Anti-Rush timer that warns if the page turns too early.

HANDS-FREE FACIAL GESTURES & BLUETOOTH PEDALS
• Camera Blink & Lip Page Turn: Turn pages with a deliberate long blink or lip shift using 100% on-device camera vision. Frames are never recorded or sent.
• Bluetooth Pedal Guard: Pair AirTurn, PageFlip, Donner, iRig, or any Bluetooth pedal with a 450 ms double-press guard and haptic feedback.

CONSERVATORY LIBRARY & LESSON TIME MACHINE
• Lesson History Playback: Scrub backward through a score's rehearsal timeline mark by mark.
• Score View Lens: Switch between All Marks, Mine Only, Others Only, or Clean Score, and filter by recency.
• Studio Library & Setlists: Organize scores with folders, bookmarks, and setlists. Import forScore archives, ZIPs, or PDFs.