Following the third, Epígeno No.4 explores more static, atmospheric textures with denser harmonic clusters. The piece is characterized by its deep emotional resonance and deliberate pacing.
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 chord voicing — bringing out one note inside a handful of others.
The technical difficulty lies in controlling the damper pedal to sustain atmosphere without muddying the harmonic changes.
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.
Lesser-known works by the same hand, at a comparable level.
Epígeno No.4 is rated Henle level 4 of 9 — intermediate repertoire, roughly ABRSM grades 5–6. In the RCM system it corresponds to about level 5.
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 Epígeno No.4 lasts about 4 minutes.
Epígeno No.4 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 Beryllisations No.1 by Jailton de Oliveira, Epígeno No.3 by Jailton de Oliveira, Beryllisations No.10 by Jailton de Oliveira — see the full similar-pieces list on this page.