Efemere is a transient, impressionistic work by Calderan that focuses on shifting tonal colors. It is distinctive for its avoidance of traditional cadences in favor of lingering, unresolved harmonic atmospheres.
At Henle 4 this is an intermediate piece that expects secure technique and real attention to phrasing. The main demands: careful pedaling — clarity depends on the foot as much as the fingers; a true singing tone, with the melody floating above the accompaniment; and several simultaneous layers, each needing its own dynamic level.
Beyond that, expect rubato that must breathe naturally without losing the pulse.
Achieving an effective pedal-wash without muddying the harmonic shifts is the central technical requirement.
Comparable difficulty and character — good candidates for what to learn next.
A level or two down with the same spirit — ideal if this piece is still out of reach.
Where this piece's skills lead: slightly harder works making similar technical demands.
Efemere is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 4 — meaning you can already play level 3–4 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Efemere lasts about 3 minutes.
Efemere is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include Blake Night by Elia Alessandro Calderan, Albumblatt by Elia Alessandro Calderan, Clair de lune - piano by Claude Debussy — see the full similar-pieces list on this page.