You will likely find the "Work Page" on IMSLP listing the instrumentation and history, but the actual PDF score may be restricted or unavailable due to licensing laws.
If you manage to secure the score, prepare for a rigorous technical workout. Op. 41 is considered an advanced concert piece. kapustin variations op 41 imslp
The search is a gateway drug to Kapustin’s larger output. Once you learn Op. 41, you will inevitably hunt for his Eight Concert Etudes (Op. 40) and the Sonata No. 2 (Op. 54). You will likely find the "Work Page" on
Based on the opening bassoon solo from Stravinsky’s The Rite of Spring . kapustin variations op 41 imslp