Complex sentence: As computer technology and music software became more accessible and advanced at the start of the 21st century, bands often forewent traditional practices and conceived high quality music divorced of the usual studio production using little more than a single laptop computer.
Split into simpler sentences: As computer technology and music software became more accessible and advanced at the start of the 21st century, bands' interaction with music production technology became possible using means that bore no relationship to traditional practices. High quality music was often created divorced of the usual studio production using little more than a single laptop computer.