1963 – Formation of the band (Pavol Hammel – guitar, vocals; Peter Saller – guitar; Vladimír Kaššay – bass guitar; František Machats – drums)
1967 – Performances in Milan Lasica and Július Satinský’s program “Evenings for Two”; appearance at the 1st Czechoslovak Beat Festival at the Lucerna in Prague; release of the songs “Come with Me,” “There in Massachusetts,” and “I Sing a Song”; beginning of collaboration with Marián Varga
1968 – Performance at the 2nd Czechoslovak Beat Festival in Prague; the song “Black Rose” became the song of the festival
From 1970 – Collaboration with guitarist František Griglák; concerts at Divadlo na korze
1975 – Concert activity (Pavol Hammel – guitar, vocals; Ján Lehotský – keyboards; Laco Lučenič – bass guitar; Cyril Zeleňák – drums; Tomáš Rédey – guitar)
From 1975 – The group continued in various musical formations as a backing band for Pavol Hammel