Popular music began to replace folk music in Slovakia beginning in the 1950s, when Slovakia was a part of Czechoslovakia; American jazz, R&B, and rock and roll were popular, alongside waltzes, polkas, and czardas, among other folk forms. By the end of the 1950s, radios were common household items, though only state stations were legal. Slovak popular music began as a mix of bossa nova, cool jazz, and rock, with propagandistic lyrics. Dissenters listened to ORF (Austrian Radio), Radio Luxembourg, or Radio Free Europe, which played more rock. Czechoslovakia was more passive in the face of Soviet domination, and thus radio and the whole music industry toed the line more closely than other satellite states.