Simplify the following text for a Grade 10 native English-speaking person.
Original: Electronic music was once associated almost exclusively with Western art music but from the late 1960s on the availability of affordable music technology meant that music produced using electronic means became increasingly common in the popular domain . Today electronic music includes many varieties and ranges from experimental art music to popular forms such as electronic dance music .
Simplified: Electronic music is music which is made with electronic equipment such as synthesizers or computers .