He was accompanied by Mieczysław Horszowski, Arthur Balsam, Peter Serkin, Franco Agostini, Wolfgang Plagge, Jerzy Lefeld, Maciej Paderewski, Jerzy Marchwiński, Zofia Vogtman, Paul Berkowitz, Cynthia Raim, Roman Markowicz, Steven Meyer, Golda Tetz and his wife, Joanna Maklakiewicz.
First Prize at Fifth International Henryk Wieniawski Violin Competition, Poznań, Poland, 1967
First Prize at Philadelphia Orchestra Competition, Philadelphia, USA, 1972
First Prize at G. B. Dealey Competition, Dallas, USA, 1974
First Prize (together with New Arts Trio, consisted: Rebecca Penneys – piano, Steven Doane - cello) at The Walter W. Naumburg Competition, New York, USA, 1979
First Prize (together with New Arts Trio, consisted: Rebecca Penneys – piano, Steven Doane - cello) at The Walter W. Naumburg Competition, New York, USA, 1980
W. A. Mozart Violin Concerto in D Major KV 218, K. Szymanowski I Violin Concerto op. 35 (Warsaw Philharmonic Orchestra, Stanisław Wisłocki - conductor), 1969, Muza
J. Brahms 2 Sonatas for piano and violin in A Major op. 100 and in d minor op. 108 (Maciej Paderewski - piano), 1970, Muza
G. Bacewicz VII Violin Concerto (Warsaw Philharmonic Orchestra, Andrzej Markowski - conductor), 1969, Muza
M. Ravel Piano Trio, G. Fauré Piano Trio (New Arts Trio), 1982, Pantheon
L. van Beethoven Piano Trio in B-flat Major op. 97 ‘Archduke’ (New Arts Trio), 1983, Chamber Music Society of Rochester
F. Kreisler, F. Grieg, H. Wieniawski and others, Rose in the snow – Short pieces for violin and piano (Wolfgang Plagge - piano), 1997, Norske Gram
F. Busoni Sonatas for violin and piano (Franco Agostini - piano), 1998, Phoenix Classics
A. Hovhaness, C. Saint-Saëns, M. Ravel and others Garden of Adonis – compositions for violin and harp (Małgorzata Milewska-Sundberg - harp), 2000, Porsgrunn Museum
H. Wieniawski All works (Wolfgang Plagge – piano) – CD nr 1 (2000), CD nr 2 (2005), 2L Records (Aura)
Theodore Strongin, Janowski is heard in a violin recital, 23 April 1971, The New York Times.
Raymond Ericson, Music: Philharmonic. Bernstein Leads Works by Harris and Copland and Diamond Premiere, 3 April 1976, The New York Times.
Joseph Horowitz, 3 Polish Musicians in Tribute, 20 May 1978, The New York Times.
Harold C. Schonberg, Newport Opera to Do 3 Concerts a Day, 5 July 1978, The New York Times
2 Chamber Groups Win ’80 Naumburg Awards, 9 April 1980, The New York Times.
Edward Rothstein, Concert: Chautauquans, 17 August 1982, The New York Times.
John Rockwell, Concert: New Arts Trio at Alice Tully Hall, 23 March 1983, The New York Times.
Piotr Janowski gives the most exhilarating, refreshing Wieniawski playing I have heard in a long time - I cannot wait for volume 2!, 1 April 2002, The Strad Magazine.
Anne Midgette, Music Review: A Lithuanian Legend's Century-Old Quartet, or Most of It, 7 January 2003, The New York Times.