Welcome to Heartopia Piano Sheet Guide. Each normal letter (t, y, u, z, x, c, etc.) represents a single piano key on your keyboard layout. Anything inside curly braces like {pmw} is a chord, meaning you press all those keys together at the same time.
Numbers such as 5 act as rhythmic spacing or beat markers rather than actual notes, so treat them like a slight pause or emphasis.
You should imagine your left hand mostly handling the lower-range letters (z, x, c, v, b, n, m, , , . , /) while your right hand handles the higher letters (t, y, u, i, o, p, q, w, e, r).
Intro – Rosalina’s Comet Observatory (Super Mario Galaxy)
Rosalina’s Comet Observatory is a calm, emotional piece that captures a sense of wonder, solitude, and quiet hope. On piano, the song relies heavily on soft chord layers paired with a gentle, repeating melody. Instead of fast note runs, the beauty of this piece comes from smooth chord transitions, controlled timing, and letting notes breathe naturally. If played patiently, even simple chord progressions feel magical and expressive.
This sheet uses compact chord notation, so understanding every chord clearly will make the entire piece much easier to memorize and perform smoothly.
All Chords Used in the Sheet
Every chord written inside curly braces {}, exactly as they appear. Each chord should be played together as a single unit.
Primary Melody Chords
{pmw}
{qe}
{wr}
Left-Hand & Support Chords
{,c}
{pe}
{/w}
{pq}
{om}
{on}
{,d}
{/b}
{mo}
{,n}
{oq}
Extended / Decorative Chords
{[n}
{o[q}
{opx}
{qv.}
{.m}
{.q}
Transition & Variation Chords
{,t}
{[t}
{,r}
{pr}
{,e}
{ow}
{,pq}
{wp}
{pq,}
{ot}
Main Progression Chords (Rising Section)
{oqt}
{zq}
{vw}
{zw}
{vu}
{/qt}
{/q}
{/t}
{ci}
Climax / Emotional Peak Chords
{obmw}
{obme}
{pbqr}
{pvmt}
How to Use This Chord List
Practice each chord slowly to build finger familiarity before attempting the full song.
Group similar chords together when memorizing, especially those with shared letters like {oqt}, {oq}, and {oqt}.
During performance, prioritize smooth transitions over speed. This piece sounds best when chords feel connected rather than rushed.