Dreamy pastel cloud sky vertical alignment casual game. Floating music note sheets drift slowly downward across the starry angel cloudscape every level. Slide the semi-transparent partition barrier up and down to adjust vertical opening positions, letting sheet music pass cleanly through matching vertical gaps without collision. Every sheet crashing into the solid barrier deducts one mistake tolerance, and full tolerance loss fails the stage instantly. Early easy levels feature slow sheet drift speed and wide opening gaps. Advanced stages speed up falling sheet velocity, shrink the size of valid vertical passages, spawn multiple overlapping layers of drifting sheet music at once, and add noticeable sliding lag to the barrier controls. Soft lavender star cloud angel illustration with smooth vertical partition swipe mechanics for calm musical fantasy casual downtime.