• 1954 – 1958

    Secondary Technical College in Bratislava, self-taught musician

  • 1958

    member of the Academia Club, oriented towards the West Coast style; formed the Danubia kvintet

  • 1959

    headed the East Coast Studio (Laco Bystrický – tenor saxophone, Viktor Hidvéghy – piano, Gustáv Riška – bass, Jozef Škvařil – drums) oriented towards hard bop

  • 1960 – 1962

    during his military service, he participated in jam sessions at the Winter Stadium pub in Štvanice, Prague

  • 1962

    played with the Jazz Orchestra of Czechoslovak Radio in Prague, the Rokoko Theatre sextet (also known as the Jazz Outsiders, Prague)

  • 1962

    performed at the Na zábradlí Theatre Jazz Festival (Prague) with the Jazz Outsiders; played with the dance orchestra of Jaroslav Decker and Zbyněk Červenka at the Obecný dom wine cellar (Prague)

  • 1962 – 1964

    member of Karol Velebný’s SHQ

  • 1965

    member of Jan Konopásek’s Quintet, later renamed Reduta Quintet

  • from 1966

    member of the Reduta Quartet (Jan Hammer – piano, Miroslav Vitouš – double bass, Laco Tropp – drums); performed in a quartet with the singer Eva Olmerová for the full-length film Mučedníci lásky (dir. Jan Němec)

  • 1966

    received an award from the Czechoslovak Jazz Federation for solo performance; cooperated with Karol Krautgartner on the album Jazz kolem K. K.; played with the Czechoslovak Radio Jazz Orchestra (performing in the ‘Le Grand Music Hall de Tchécoslovaquie’ at Olympia, Paris), and with Karol Velebný’s SHQ (an anthology of Czechoslovak jazz 1966)

  • 1967

    Luděk Hulan’s group of soloists (a series of radio broadcasts, including Embraceable You, Once In A While, The Man I Love...)

  • 1966 – 1981

    member of the Czechoslovak All Star Band

  • 1967

    established his own group, Cellula; collaborated with Ladislav Gerhardt

  • 1970

    played with the Czechoslovak Radio Dance Orchestra in Prague and the Czechoslovak Radio Jazz Orchestra

  • 1970s and 1980s

    played in a duo with Zdeněk “Sarka” Dvořák (Leipziger Jazz Tage – 1980, the International Jazz Festival in Prague – 1981, a concert tour of Cuba – 1983)

  • 1980

    spent a short time in the USA, where he was an occasional guest performer of Sonny Costanzo’s Quintet and Big Band; performed in Věra Chytilová’s full-length film Calamity

  • from 1987

    stage and club performances in New York

  • 1990

    the making of Laco Déczi’s film biography, entitled Voľná noha (directed by J. Matula, with Laco Déczi played by Marián Zednikovič)

  • 1991

    a performance at the Bratislava Jazz Days with his group Jazz Cellula (Laco Deczi – trumpet, Laco “The Egg” Deczi Jr. – drums, D. Anderson – bass guitar, keyboard instruments, W. Barrow – keyboard instruments)

  • 1992

    Kolín Jazz Festival, Košice

  • 1996

    Slovak Jazz Festival in Žilina

  • 1998

    the Jazz under the Castle Jazz Festival in Trenčín

  • from 1998

    regular club performances with his own band at ‘Nimrod’, Manhattan