"When we started making electronic music I imagined that the reaction we got from the rock musicians must have been similar to the one the beat groups got from people like my dad"

Trevor Horn's quote is a reflection on the evolution of music and the reactions it has gotten from different generations. He is referring to the transition from rock music to electronic music, and the reaction it received from rock artists. He is recommending that the response was similar to the one his father had when the beat groups very first emerged. This indicates that the older generation was resistant to the new music, just as the rock artists were resistant to the electronic music. It is a suggestion that music is continuously evolving and that it is very important to be available to brand-new sounds and styles. It likewise suggests that the generational divide in between music styles is not as broad as it may seem, and that the very same responses can be seen in various periods.