This symphonic poem was composed in 2001 as a hommage to Wagner and Buckner. It employs as cantus firmus quotation of Polish religious song: "Holy God, Holy Mighty, Holy and Immortal, have mercy on us." The piece was revised in 2021.

Pawel Strzelecki: "Supplication" for Orchestra (2001, rev. 2021).

Polish composer (M.A., 2002, "F. Chopin" Acedemy of Music in Warsaw, Prof. Zbigniew Baginski's class), music theorist (M.A., 2000, "F. Chopin" Acedemy of Music in Warsaw, under Prof. Maria Piotrowska), musicologist (Ph.D., 2005, University of Warsaw, under Prof. Zbigniew Skowron), researcher, lecturer.
So far he has written 119 pieces: 12 symphonies (2017-2024), 3 symphonic poemes (2001-2011), 3 solo concertos with orchestra (organ, piano, flute, 2002-2024), 19 string quartets (2001-2024), 16 sonatas for different solo instruments with piano (violin, cello, oboe, trombone, etc.), chamber music as Piano Trio (1998), Piano Quartet (2021), Piano Quintet (2003), String Trio (2021), numerous songs for voice and piano, sacred works, e.g. Mass for soloists, choir, organ and orchestra (2002, rev. 2024), and electronic music.  
The author of the crucial, first and original book (used as academic manual and present in many libraries) on "New Romanticism" in Polish music after 1975 (2022, English Language Edition).
https://www.peterlang.com/document/1282565?fbclid=IwAR1Pm40flHnsqH07OsvXdXwV1ZwLeVLOmfrxkqe3wxL5rsJioluBL-2FQ9M#document-details-anchor
Polish edition (2006):
https://mi.pl/pl/p/Pawel-Strzelecki-Nowy-romantyzm-w-tworczosci-kompozytorow-polskich-po-roku-1975/59

The book was quoted in: Andrea Bohlman: "Musical Solidarities. Political Action and Music in Late Twentieth-Century Poland". Oxford University Press, 2020, pp. 208, 266. The link to the quotation (p. 208):
https://books.google.pl/books?id=uNnBDwAAQBAJ&pg=PA208&dq=bohlman+nowy+romantyzm&hl=en&sa=X&ved=2ahUKEwjoyL-x-Lf4AhXOk4sKHUWMChUQ6AF6BAgEEAI#v=onepage&q=bohlman%20nowy%20romantyzm&f=false

Pawel Strzelecki: "Supplication" for Orchestra (2001, rev. 2021).

Pawel Strzelecki, Ph.D.