In his translations, he published lyrical works of many European and American poets from the antiquity to the present time, from Sappho and Ovid to Paul Celan and Robert Lowell. His own poetry was published not only in Russia but in Germany and France as well. Parin wrote many libretti for operas by such composers as Kobekin (Russia), Lobanov, Chemberdji (Germany), Shchetynsky (Ukraine), Bardanashvili (Israel), Raskatov and Fenelon (France). The opera project The Voices of the Invisible under the artistic direction and with the libretto by Parin won The Golden Mask National Prize (2000).
Parin is the author of more than 700 essays and articles on music and musical theatre published in Russia and also abroad. For 20 years he presents his music features for the radio stations Echo of Moscow and Orpheus. His books Walking into an Invisible Town. Paradigms of the Russian Classical Opera (1999) and the trilogy On Singing, on Opera, on Fame (2004), The Phantom of the Russian Opera (2006), The European Opera Diary (2007) show the range of his academic and journalist interests. He took part at many international congresses, conducted seminars and lectured at various universities and music high schools in Europe (Saint-Petersburg, Vienna, Zurich, Basel, Innsbruck, Leipzig, Strasbourg etc.).
Among his organizational activities, one should mark the artistic direction of the renowned festival SakroArt in Loccum, Germany (1995–2004), of the production of the opera Cosi fan tutte at the Ludwigsburg International Festival (1999) and various opera projects at the Moscow Helikon Opera.
For 10 years Parin has been the editor-in-chief of the illustrious publishing house Agraf in Moscow. As dramaturge, Parin took part at the productions of Aida (Novosibirsk), Tristan und Isolde (Mariinsky Theatre), Boris Godunov (Staatsoper Berlin), Khovanshchina (Bayerische Staatsoper Munich), and Lady Macbeth of Mtsensk (Deutsche Oper am Rhein).