Complex sentence: Jive Bunny and the Mastermixers began mixing classic rock'n'roll with electro in the 1980s and 1990s and was followed by early Electro swing tunes which were one-offs and would not at the time have been described as such.
Split into simpler sentences: Jive Bunny and the Mastermixers began mixing classic rock'n'roll with electro in the 1980s and 1990s. Most early Electro swing tunes were one-offs and would not at the time have been described as such.